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  • 1.
    Andreasson, Rebecca
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Division of Visual Information and Interaction. Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computerized Image Analysis and Human-Computer Interaction. Högskolan i Skövde, Institutionen för informationsteknologi.
    Lindblom, Jessica
    Högskolan i Skövde, Institutionen för informationsteknologi.
    Thorvald, Peter
    Högskolan i Skövde, Institutionen för ingenjörsvetenskap.
    Tool use and collaborative work of dock assembly in practice2017In: Production & Manufacturing Research, ISSN 2169-3277, Vol. 5, no 1, p. 164-190Article in journal (Refereed)
    Abstract [en]

    In order to deepen the understanding of the intrinsic interactions and interplay between humans, tools, and environment from a systems perspective, research in the wild (RITW) approaches have gained traction during recent decades as they provide a higher ecological validity of findings. This paper presents a RITW study, investigating how assembly, in this case dock assembly of forwarders, was done in practice. As our theoretical foundation, we used the framework of distributed cognition, which is one of the main pillars of RITW. The findings are presented in narrative form, describing and highlighting that the workers achieve an efficient production outcome by being integral parts of the whole production process and doing so through coordination of activities benefitting the shared goal of the distributed socio-technical system.

  • 2.
    Aslam, Tehseen
    et al.
    Univ Skovde, Dept Engn Sci, S-54128 Skovde, Sweden.
    Syberfeldt, Anna
    Univ Skovde, Dept Engn Sci, S-54128 Skovde, Sweden.
    Ng, Amos
    Univ Skovde, Dept Engn Sci, S-54128 Skovde, Sweden.
    Pehrsson, Leif
    Univ Skovde, Dept Engn Sci, S-54128 Skovde, Sweden;Volvo Car Engine, Mfg Res & Concepts, Kaplansgatan 16, S-54143 Skovde, Sweden.
    Moris, Matias Urenda
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Towards an Industrial Testbed for Holistic Virtual Production Development2018In: ADVANCES IN MANUFACTURING TECHNOLOGY XXXII / [ed] Thorvald, P Case, K, IOS PRESS , 2018, p. 369-374Conference paper (Refereed)
    Abstract [en]

    Virtual production development is adopted by many companies in the production industry and digital models and virtual tools are utilized for strategic, tactical and operational decisions in almost every stage of the value chain. This paper suggest a testbed concept that aims the production industry to adopt a virtual production development process with integrated tool chains that enables holistic optimizations, all the way from the overall supply chain performance down to individual equipment/devices. The testbed, which is fully virtual, provides a mean for development and testing of integrated digital models and virtual tools, including both technical and methodological aspects.

  • 3.
    Au-Yeung, Ginsun
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences. Uppsala universitet.
    Andersson, Mattias
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences. Uppsala universitet.
    How can Lean contribute to create effective meetings?: A case study at Ericsson in Borås2015Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Lean is a philosophy that has been studied extensively in recent years, and it has been successfully implemented in a number of different processes and businesses. This study aims to examine how Lean can contribute to create effective meetings, which is a topic that has received limited attention in today’s research.

    Firstly, a situation analysis is done in order to identify common meeting problems at Ericsson Borås. Secondly, a comprehensive analysis is conducted concerning whether Lean is applicable on meeting processes or not. This analysis is mainly based on the five principles of Lean Thinking. Thirdly, the study investigates the potential effect of an implementation of Lean, as well as how Lean principles can be applied in order to reduce or eliminate wastes.

    The result of the analysis formed the base for the development of the action plan. Subsequently, the action plan is implemented on the meeting processes by pilot testing it on three different meetings. This analysis is mainly focusing on whether the meeting problems have been eliminated or not.

    Based on our research, we have perceived that almost every meeting is unique and all meeting problems we have identified do not occur at all meetings. Majority of the meeting problems were eliminated by applying Lean principles. Moreover, several respondents also expressed that Lean is a good way to give more structure to meetings, and therefore contributes to more effective meetings. However, we have noticed that principles of Lean cannot eliminate all meeting problems at Ericsson. This can be seen as minor criticism when organizations use Lean as the only solution to improve meeting processes.

  • 4.
    Ballaei, Sahar
    Gotland University, School of the Humanities and Social Science.
    Utveckling av skylt samt en parkerings app för Visby innerstad2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In this examination project, at candidate level with extent of 15 credits has been going on for ten weeks and been in collaboration with the municipality of Gotland, Region Gotland.This assignment has been about developing a new parking sign for Visby’s inner town and to facilitate navigation in traffic through a parking app. The parking sign and the app interact with each other and create a unity over the traffic problems in Visby.

    The problem formulation of the project has been:“How can I develop a new navigational system to facilitate the traffic flow in Visby and a new parking sign that is easily understood, while blending in with the cultural heritage with reasonable measures for Region Gotland to produce?”

    I have through studies of color, form, function analyzed and come up with a graphic symbol, in a choice that is recognizable to the signs related to parking machines and payment of them adapted for Visby’s inner town as well as it should blend in with the environment. You should easily be able to interpret the signs and find the parking machines as well as the parking app gives you direction to the nearest parking space and inform you if any parking spaces are available or not, all this give you more comprehensive and facilitate information.The project has been adapted to human from an ergonomic perspective and the cultural heritage of Visby old town, with reasonable measures for the municipality to realize and produce.

  • 5.
    Bergström, Philip
    Gotland University, School of the Humanities and Social Science.
    Kökslampa: tema Fransk Bistro2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The report describes the thesis I, Philip Bergstrom, have done at the University of Gotland. The work comprises 15 credits and is at bachelor level and has been done in collaboration with Lyktan Bankeryd Belysning.The project consists of developing the design of a kitchen lamp for the Swedish home following the catchwords stripped French bistro that will fit into the Lyktan Bankeryd lighting spring collection 2013, and it should not look too alike any existing lamp on the market today.The work includes analysis of the company's current products and the image the company wants to project, analysis of three other companies' products to draw inspiration from, and a simple ergonomic study of the lights in the kitchen.The final result achieves the demands made and fits well in the intended environment, there is also the possibility for further development of both a floor lamp and a wall lamp.

  • 6.
    Brandsjö, Erik
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Förbättring av flödet mellanlager och produktion2012Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Atlas Copco Craelius har vid årsskiftet 2011-2012 genomfört en flytt av större delar avlagret då en ökad produktion med tiden har medfört att lagret blivit för litet.Hanteringen av ankommande gods och plock av artiklar till monteringen har inteutvecklats i samma takt som företaget och är därför i behov av modernisering. Idagsläget placeras allt ankommande gods på gården och registrerades sedan i turordningi affärssystemet Movex. Detta sätt att arbeta medför att då det kommer stora volymerankommande gods tar det lång tid innan allt registreras. Atlas Copco Craelius har pgaav detta arbetssätt ingen möjlighet att veta vilka artiklar som finns bland det gods somblir stående i väntan på att läggas in i lager och registreras. Därför vill Atlas CopcoCraelius ta fram ett nytt arbetssätt som gör det möjligt att veta vad som har kommit såfort som möjligt för att sedan kunna lagerlägga och registrera i turordning.På grund av sättet som lagret har arbetat har det inte funnits några möjligheter att mätahur lång tid det tar att lägga in ankommande gods eller hur lång tid det tar från att ettplock kommer ut till lagret tills det att plocket levereras till monteringen. Atlas CopcoCraelius är därför i behov av att implementera nya arbetssätt som gör det möjligt attinför KPI:er (Key Performance Indicator) .Arbetet är fokuserat på att förbättra flödet genom lagret till produktionen genom att tafram nya arbetssätt och KPI:er för godsmottagningen och produktionsteknikerna somansvarar för plocken samt för plockarna. Arbetet har delats in i tre faser för att skapa entydlig struktur. Dessa faser är dokumentation av nuläget, benchmarking med andraföretag samt framtagning av nya arbetssätt och KPI:er.När dokumentationen i första fasen blivit klar och därmed kan fungera som en bas förbenchmarking utfördes studiebesök och dokumentering på två andra företag för attkunna undersöka vilka områden som var i behov av förbättring genom benchmarking.Denna benchmarking ligger sedan tillsammans med idéer och önskemål från anställdatill grund för utformandet av de nya arbetsrutinerna som denna rapport presenterar.

  • 7.
    Brungs, Jacob
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Kartläggning och analysering av initieringsprocessen: En fallstudie utförd hos Teknikgruppen för RV2012 på Sandvik AB2015Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This thesis has been carried out to the Technology Group at industrial plant Tube Mill

    2012, which belongs to the Sandvik AB. Technology Group is a unit that takes care of

    all requirements and suggestions regarding investigations, test runs and design

    modifications. The main objective is to identify and analyze the existing initialization

    process to see where improvement opportunities exist and to come up with

    suggestions for improvement, supported by previous research and literature. An

    extensive literature search and case study has been conducted to provide a solid

    foundation to refer to during the work. Completing the interviews and the workshop

    gave a clear picture of their unstructured work and approach, how the low

    requirements on the received orders caused problems for the group as well as the

    lack of a standardized resource allocation method provides major delay factors.

    Solution proposal then became a very easy process model in five steps with all the

    information gathered in one place. Each step has its own side but a bulleted list that is

    used for the record which gives the work a very lucid and clear status explanation.

    Further research proposals for the development of their resource allocation, and to

    start working in teams are given.

  • 8.
    Brunnstedt, Felix
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Virtuella projektteam: Ett förbättringsarbete för projektverksamheten inom ÅF Infrastructure2016Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This thesis has been conducted inassociation with ÅF Infrastructure AB in Borlänge, Sweden. Within ÅF Infrastructure and other ÅF divisions it is common to make use of the geographically dispersed employees in virtual project teams. Some of the advantages from working in virtual teams are financial, due to the fact that a company can save money in recruiting costs, office rents and travel costs.Thanks to the technological progress since the start of the 1990’s the use of virtual teams is being considered a common way to cooperate nowadays. With the advantages though comes disadvantages, pitfalls and challenges to face for the virtual team toovercome.The purpose of this thesis was to conducta case study to find out how ÅF make use of virtual teams. With this in regard, the statement of issues for this bachelor thesis were the following: is the casestudy for this project affected by being geographically dispersed and how can the eventually negative consequences be fixed and improved, and how are the common virtual team pit falls and challenges handled and how can this make use in future projects? To answer these questions the decision was made to conduct a literature study, observation study and an interview study with the project members in the casestudy. During the literature study facts concerning the area of virtual teams and project management were gathered and made use of during the interview and observation study. The conclusion of this thesis was that the case study project isaffected by being geographically dispersed, but handles pit falls and challenges well in most cases. Some of the areas they can improve is first and farmost the meeting arrangements, where they are recommended to focus on effectiveness, preparations and include more videoconferencing. One of the approaches they can make use of in future projects are thekick off meeting, where they should focus on really make sure that every team member is aware of the projects goals, their own involvement and the scope of their assignment.

  • 9.
    Brydges, Taylor
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Social and Economic Geography.
    "Made in Canada": Local production networks in the Canadian fashion industry2018In: The Canadian Geographer / Le Géographe canadien, ISSN 0008-3658, E-ISSN 1541-0064, Vol. 62, no 2, p. 238-249Article in journal (Refereed)
    Abstract [en]

    The fashion industry is a highly globalized industry increasingly dominated by international firms that favour flexible, efficient supply chains in order to produce trendy clothing at the lowest price. While much of the fashion industry follows the logics of global production networks, this paper presents a case where small, independent firms have chosen instead to engage with local production networks. Drawing on interviews with 87 independent fashion designers and key informants, this paper examines the following question: In the context of global production, why do independent fashion designers choose to work locally? In answering this question, three key findings are presented: the motivations of designers who emphasize timeless design and high-quality local manufacturing; the strategies employed by designers to cultivate exclusivity and loyalty through the distribution of their collections; and the ways in which unique consumption experiences are utilized to articulate the values of their brand to consumers. While operating outside of the traditional fashion system provides independent fashion designers with the space for creativity, innovation, and control over their brand, it will be argued it also creates challenges with respect to growth beyond their niche market.

  • 10.
    Colombo, Stefano
    et al.
    Univ Copenhagen, Dept Pharm, Copenhagen, Denmark.
    Beck-Broichsitter, Moritz
    Philipps Univ, Dept Pharmaceut & Biopharm, Marburg, Germany.
    Becker, Johan Peter
    Univ Copenhagen, Dept Pharm, Copenhagen, Denmark.
    Malmsten, Martin
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Pharmacy, Department of Pharmacy. Univ Copenhagen, Dept Pharm, Copenhagen, Denmark.
    Rantanen, Jukka
    Univ Copenhagen, Dept Pharm, Copenhagen, Denmark.
    Bohr, Adam
    Univ Copenhagen, Dept Pharm, Copenhagen, Denmark.
    Transforming nanomedicine manufacturing toward Quality by Design and microfluidics2018In: Advanced Drug Delivery Reviews, ISSN 0169-409X, E-ISSN 1872-8294, Vol. 128, p. 115-131Article, review/survey (Refereed)
    Abstract [en]

    Nanopharmaceuticals aim at translating the unique features of nano-scale materials into therapeutic products and consequently their development relies critically on the progression in manufacturing technology to allow scalable processes complying with process economy and quality assurance. The relatively high failure rate in translational nanopharmaceutical research and development, with respect to new products on the market, is at least partly due to immature bottom-up manufacturing development and resulting sub-optimal control of quality attributes in nanopharmaceuticals. Recently, quality-oriented manufacturing of pharmaceuticals has undergone an unprecedented change toward process and product development interaction. In this context, Quality by Design (QbD) aims to integrate product and process development resulting in an increased number of product applications to regulatory agencies and stronger proprietary defense strategies of process-based products. Although QbD can be applied to essentially any production approach, microfluidic production offers particular opportunities for QbD-based manufacturing of nanopharmaceuticals. Microfluidics provides unique design flexibility, process control and parameter predictability, and also offers ample opportunities for modular production setups, allowing process feedback for continuously operating production and process control. The present review aims at outlining emerging opportunities in the synergistic implementation of QbD strategies and microfluidic production in contemporary development and manufacturing of nanopharmaceuticals. In doi ng so, aspects of design and development, but also technology management, are reviewed, as is the strategic role of these tools for aligning nanopharmaceutical innovation, development, and advanced industrialization in the broader pharmaceutical field. (C) 2018 Elsevier B.V. All rights reserved.

  • 11.
    Danielsson, Roxanne
    Gotland University, School of the Humanities and Social Science.
    Kristallkronan till Stora Hotellet2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This report presents the Examination Project in a Bachelor of Industrial Design. The project has been created at the University of Gotland and in collaboration with a company named Stylt Trampoli in Gothenburg.

    The goal of the project has been to create a cut-glass chandelier to Stora Hotellet in Umeå. The foundation has been to reflect the inertialdesign concept of Stora Hotellet and its keywords.

    The project has included the phases of the design process. The process contains research of facts, analyses and explanations regarding the creative work and development.

    The process and the outcome are presented in words and images in the report. The result is a 12.5 meter long cut-glass chandelier containing of large crystals made of acrylic, hanging in hemp ropes from the roof on the 4thfloor. Three light pipes of LED-lights are placed within the cut-glass chandelier to spread the light from the inside and out. The result meets the demands which have been the foundation of the project.

  • 12.
    Didriksson, Nina
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Standardiserade arbetssätt: Barriäridentifiering och framläggning av riktlinjer för återimplementering av 5S2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The study has the intention to identify factors that prevent Organization X from succeeding with 5S as well as establish guidelines for reimplementation of the working method. Collected materials, through qualitative methods within phenomenological research framework, demonstrate that Organization X used to have good level of 5S in the organization. Maintaining this level has how ever been neglected during recent years. Current work in 5S is inadequate and several employees have requested structure and orderliness at the work place. Analyzation of differences between past and present work of 5S as well as analysing the difference between the employees’ expectations and Organization X promises of 5S in the organization and barriers affecting the accomplishment of 5S were identified. The identified barriers are: lack of top management commitment and requirement, lack of goals, vision and strategy, lack of education and training, inadequate leadership, resource shortages for improvement work, lack of follow-up and revision, unclear ownership responsibility and role allocation as well as lack of improvement process. A performed cultural analysis shows a rational organizational culture in Organization X which strives for stability and rapid short term changes. The organizational culture demonstrates a consonance with the current 5S-work, which may mean a resistance for change. An important activity to focus on in future reimplementation of 5S is to identify norms, values and incentive which have ability to affect drive forces to foster change. Organization X should focus on educating the top managers and the employees in 5S as well as initiating and follow up the implementation. The last implementation of 5S was successful. Based on the result of the previous implementation, Organization X could use previous strategy for reimplementation based on organizational experience. The chosen strategy for reimplementation of 5S should be adapted to Organization X words of value and business. Follow-ups and revisions as well as constructing an improvement process are important activities for 5S anchoring in the organization. The activities contribute to the cultural change 5S requires for successful reimplementation.

  • 13.
    Ericsson, Amalia
    Gotland University, School of the Humanities and Social Science.
    Förskolans nya grind: utveckling av grind till förskolan2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Detta projekt bygger på ett samarbete med Group perimeter protection AB som är en del av Gunnebos koncern. GPP levererar områdesskydd och bland dessa grindar och staket till förskolan. Samarbetet har resulterat i utvecklingen av en säker och brukarvänlig grind till förskolans utomhusmiljö. Projekt syftar till att utveckla en nytänkande användarvänlig utomhusgrind till förskolan. I dag är förskolans säkerhet ett omdiskuterat ämne i media och inom förskolan, vilket resulterat i att regeringen har tillsatt en utredning för att komma till rätta med vart det brister? Innan den utredningen gett några svar, utgår vi ifrån observationer i vardagen. Det har visat att grinden är något som ofta lämnats olåst. Till detta finns en rad olika förklaringar. Däribland: konstruktioner som inte fungerar som tänkt, dåligt underhåll, moraliska aspekter hos föräldrar, en överbelastad arbetssituation med ökat ansvar hos förskolelärare och en utomhusmiljö som inte är anpassad till dagens förskolas verksamhet. Det finns inga egentliga standarder för hur en grind skall utformas för att vara säker förutom ett antal direktiv som man bör ta i beaktning. Dagens befintliga förskolegrindar runt om i Sverige har visat sig vara ett underprioriterat ämne och det finns tydliga brister i underhåll. Vems är då egentligen ansvaret? Vem ser till barnens bästa? Och hur skapar men en säker men kreativ förskola för att anpassa sig till dagens förskolas pedagogiska tänk kring utomhusmiljön?Dagens förskolegrindar ser i princip likadana ut och få förändringar har skett sen tiden för 70-talet. Det är svårt att skilja konkurrenterna åt och få har riktat sig mot användarna av produkten: föräldrar och förskolelärare. Den nya grinden utgår ifrån användarnas åsikter och tankar kring produkten. Resultatet blev en nytänkande och välkomnande grind som tydligt visar vägen in till förskolans verksamhet.

  • 14.
    Eriksson, Linda
    Gotland University, School of the Humanities and Social Science.
    Boxi: flexibel modulmöbel för barn2011Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    A child requires furniture with various user areas throughout his or her life. As the child grows, new needs are created, either through personal or physical development. Today’s solution is to buy new furniture when the old ones are too small, and the result of this project would be an alternative to that. Today's market has almost no childrens’  furniture that can be used for a long time. This project is a collaboration with Zweed and the task has been to develop a modular furniture system for children, focusing on flexibility. The project has through market research and analysis of needs resulted in a piece of furniture which the user can bring along through life and grow old with.

  • 15.
    Fathi, Masood
    et al.
    Univ Skovde, Dept Prod & Automat Engn, Skovde, Sweden.
    Machado Martins Fontes, Dalila Benedita
    Univ Porto, Fac Econ, Porto, Portugal;INESC TEC, Lab Artificial Intelligence & Decis Support LIAAD, Porto, Portugal.
    Moris, Matias Urenda
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management. Jonkoping Univ, Dept Ind Engn & Management, Jonkoping, Sweden.
    Ghobakhloo, Morteza
    Univ Hormozgan, Minab Higher Educ Ctr, Dept Ind Engn, Bandar Abbas, Iran.
    Assembly line balancing problem: A comparative evaluation of heuristics and a computational assessment of objectives2018In: Journal of Modelling in Management, ISSN 1746-5664, E-ISSN 1746-5672, Vol. 13, no 2, p. 455-474Article in journal (Refereed)
    Abstract [en]

    Purpose: The purpose of this study is to first investigate the efficiency of the most commonly used performance measures for minimizing the number of workstations (NWs) in approaches addressing simple assembly line balancing problem (SALBP) for both straight and U-shaped line, and second to provide a comparative evaluation of 20 constructive heuristics to find solutions to the SALBP-1.

    Design/methodology/approach: A total of 200 problems are solved by 20 different constructive heuristics for both straight and U-shaped assembly line. Moreover, several comparisons have been made to evaluate the performance of constructive heuristics.

    Findings: Minimizing the smoothness index is not necessarily equivalent to minimizing the NWs; therefore, it should not be used as the fitness function in approaches addressing the SALBP-1. Line efficiency and the idle time are indeed reliable performance measures for minimizing the NWs. The most promising heuristics for straight and U-shaped line configurations for SALBP-1 are also ranked and introduced.

    Practical implications: Results are expected to help scholars and industrial practitioners to better design effective solution methods for having the most balanced assembly line. This study will further help with choosing the most proper heuristic with regard to the problem specifications and line configuration.

    Originality/value: There is limited research assessing the efficiency of the common objectives for SALBP-1. This study is among the first to prove that minimizing the workload smoothness is not equivalent to minimizing the NWs in SALBP-1 studies. This work is also one of the first attempts for evaluating the constructive heuristics for both straight and U-shaped line configurations.

  • 16.
    Gerdin, Erik
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Rifve, Rebecca
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Förstudie till taktad produktverifikation: Möjligheterna till ett jämnare produktionsflöde2016Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This bachelor thesis has been performed at Atlas Copco’s assembly department in Tierp, during a period of ten weeks. Lean production is an important part of their daily operation. Several other big Lean projects have been completed, where among other things, takt time has been introduced at several of the assembly lines. The Tensor-testing area is the part of the factory where all Tensor-tools will be tested. The Tensor-testing area was excluded from the Lean projects, as big improvements were in motion parallel with the projects.

    The aim with the bachelor thesis was to do a feasibility study with the following problem definition: Can the Tensor-testing area be included in the takt time of the assembly lines? If yes, how could it look like? If no, which changes can be implemented to make it possible?

    To answer the problem definition, different activities have been made. A two daylong practice has been completed. A time study was made and the collected data, in combination with available test data from Atlas Copco’s database, was compiled into bar graphs. Normal distribution diagrams were created to simplify discovery of possible deviations. Simulations have been completed based on orders and delimitations. Suggestions for improvement were made, which were related to where you could see a lack of capacity. New simulations were performed based on these. From the conclusion, the Tensor-testing cannot be takted with the conditions that were; further work is necessary. The work is more a general study and not a detailed one. The reason was because of delimitations that have been necessary due to lack of time. The simulations which have been done, has created a model for further work. As there are many different types of products, other types of production sequences could be of interest, and be tested by using this model. Recommendations for further work have been made in the form of suggestions for improvements. The suggestions have theoretical support, which show that there is potential to include the testing in the takted assembly lines takt time.

  • 17.
    Gerdin, Erik
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Rifve, Rebecca
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Manufacturing System Improvement with Discrete Event Simulation: A case study with simulation applied to a manual manufacturing system2018Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Due to a global increase in competitiveness in manufacturing,companies strive to increase the effectiveness of their manufacturing systems. The new industrial revolution, Industry 4.0, is a consequence inmotion to aid in creating improved manufacturing systems. A common tool within Industry 4.0 is simulation, where one could simulate changes in a virtual representation of a real world system. Discrete Event Simulation (DES) is a tool that has been widely adopted within industries to test manufacturing system changes virtually before implementing them physically. However, there is a need to discover the advantages, disadvantages and barriers to the application of simulation modeling in industry, as well as how to show the value with using the technique.

    A case study at the global manufacturing company Atlas Copco's plant In Tierp, Sweden has been undertaken with the purpose of using DES to aid a manufacturing plant in improving a manual manufacturing system, and how this could develop the current approach to a more long-term and sustainable one. Process mapping have been used to facilitate better understanding of the system prior to simulation modeling, as a manual system proved to be difficult to map otherwise. The results of this study points to that simulation can provide advantages of that decisions regarding implementation of system improvements could have better basis for being taken, simulation can be used to test system changes virtually to prevent eventual implementation problems, and simulation can be used as a tool to generate long-term solutions. However, disadvantages and barriers were identified as resistance from management in difficulties to convince the value of using simulation, extensive modeling competency required, and lack of the right prerequisites makes simulation modeling implementation more difficult. Further research should focus on uncovering the difficulties and barriers to the implementation of simulation modeling in industry, as this was not widely discussed in existing literature.

  • 18.
    Grönhaug, Gustav
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Förbättring av tillverkningsprocessen för hydraulcylindrar hos Edvins Larssons Mekaniska AB: En automationsförstudie2017Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This thesis is a part of Automationsutmaningen which is a programsupported by Tillväxtverket, the program focus on helping small tomedium large manufacturing businesses in need of automatization andflexible solutions to their processing line. Via Robotdalen inVästerås a pilot study in robot automatization was conducted atEdvin Larssons Mekaniska AB (ELMAB), a manufacturer of hydrauliccylinders and industrial grapples. ELMAB want to reduce the manualhandling of materials and reduce their need for personnel, they alsowant to develop and meet future requirements. The purpose of this project is to find what process in the manufacturing chain that is most suitable to a solution in automatization and thereafter come up with suggestions and develop concepts that fulfill set requirements. The pilot study will act asbasis to an investment and show if a solution is profitable. Thepilot study focus on the manufacturing of hydraulic cylinders andthe processes lathe, grinding, washing and coating. The main parts of the report are status analysis and improvement suggestions. The status analysis was conducted through visits and thorough studies of the manufacturing process. Literature studies in production management and industrial robotics have been very important to increasing knowledge and understanding on what to look for in the status analysis and how to draw conclusions for theimprovement suggestions. The status analysis concluded that washing, coating and lathing all could use improvements but that only coating and lathing would benefit from a solution in automatization. Further analysisconcluded that lathing was most beneficial to a solution.Based on a requirements analysis, three concepts on robot cells weredeveloped. All concepts focused on keeping the robot cell flexible.The solution is focused on the difficulty on letting an operatorwork inside the robot cell at the same time as the robot handles adifferent lathe within the cell or if there is a another solutionthat solves the problem. The solution has to work within a safetyaspect. The solution is a portable robot with a built in safetysolution. The solution leads to saved personnel costs and increasesefficiency to the lathes within the cell. The investment has apayback time in less than three years.

  • 19.
    Gustrén, Erika
    Gotland University, School of the Humanities and Social Science.
    "Klänningen som får en andra chans": klädkonstruktion av återbruksmaterial2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This report presents a bachelor thesis by Erika Gustrén aimed to increase people’s interest for recycling and reusing by create new products of things that already exist in most people’s homes in the materials textile, plastic and paper. That would be a modern and innovative way to contribute to a better environment.The goal with this project was to create three cocktail dresses made of the same pattern and design and with the three chosen materials. The project did not have its base at a company, therefore an external mentor was chosen to help and support during the development of the project. My mentor was Kerstin Boulogner who is a fashion designer and one of the members of GKF (Gotländska Konsthantverkare och Formgivare) in Visby.The project began with an analysis of the chosen materials; textile, plastic and paper. The analysis also includes a minor summary of numbers and facts about recycling in Sweden and the rest of the world. Further the sketch work developed and resulted in one design concept. Finally three prototypes in the recycling materials textile, plastic and paper were made. By this project I wanted to show that you can reuse much of what you already have at home to new exciting creations and by that contribute positively to our environment. In the long term it might contribute to reduced waste and a better environment for both animals and humans.

  • 20.
    Hansson Garthe, Christina
    Gotland University, School of the Humanities and Social Science.
    Grundutbud av förpackningslösningar2011Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Today the common people begin to understand the impact of a package. Many choose brand or product with great emphasis on how the outside looks, both in a good and a bad way.

    The company Gotlands Grafiska gave me the task to create a small basic selection of packages. The target group that the project was based on was craftsmen in the Gotland region. Based on analysis of the market and consumers to develop a range of packages covering a wide range of products sold on the island.

    During the project a clear theme was the desire to highlight a product and create some sort of exclusivity. It was important to understand how consumers and businesses think about packaging and its function.

    The result was five different packages, which together cover much of the need for the Gotland crafts and souvenir market. The packagings are sparse in the form and have the benefit of clear space for text and printing as well as innovative design. The idea is that the customer first chooses a package and then selects a print and text on it, in that way it becomes individually tailored for specific purposes.

  • 21.
    Hansson, Johan
    Uppsala University, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Faculty of Social Sciences, Department of Business Studies.
    Needs analysis of computer simulations within ABB2007Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    A needs analysis of the computer simulation area within ABB is performed, to create input for a coming strategy formulation. The needs analysis is performed in two parts, where part 1 is presented in this report.

    Needs are gathered through six qualitative interviews with respondents from different stakeholder groups from ABB Corporate Reseach Centers (CRCs); Simulation expert, technical manager and Program Manager. The target population of the study is mainly the Business Units (BUs). Based on the needs gathering, three different approaches of using computer simulations within ABB are found:

    · Simulation support: CRC simulation experts perform simulations on the request of BU, and deliver the result back.

    · Simulation tools: CRC simulation experts develop and deliver a simulation tool to BU, enabling the BU side to perform the simulations on their own.

    · CAD-embedded simulation: BU uses CAD-embedded simulation, effectively integrating the simulations into the design phase, enabling the design engineer.

    Simulation support is not seen to grow in the future, however two of six respondents believe in increased simulation volume in general, which will increase the need for this approach also. Four out of six respondents believe in an increasing need for the approach simulation tools. An important question connected to this approach is the future responsibility of maintenance of the tools. The future need for CAD-embedded simulation is considered to be increasing by five out of six respondents, and the respondents belive this category is the most important, but much work must be done by CRC for BU to adopt the approach.

    The results will be used for the Needs analysis: Part 2, where a questionnaire is sent out to a broader audience including the BU side.

  • 22.
    Hasse, Nordlöf
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences, Social Medicine. Högskolan i Gävle, Akademin för hälsa och arbetsliv, Avdelningen för arbets- och folkhälsovetenskap.
    Förutsättningar och möjligheter för företag att prioritera och bedriva arbetsmiljö- och säkerhetsarbete2016Conference paper (Refereed)
    Abstract [en]

    Många företag saknar idag ett fungerande systematiskt arbetsmiljöarbete (SAM) som uppfyller lagens krav fullt ut. Istället tycks andra dagliga aktiviteter ha högre prioritet. Detta är en presentation av ett avhandlingsarbete, vars övergripande syfte var att undersöka förutsättningar och möjligheter för tillverkande företag att prioritera och arbeta med säkerheten och arbetsmiljön; med särskilt fokus på yrkesroller, företagsstorlek, säkerhetskultur och finansiella nyckeltal. Fyra delstudier (I–IV) ingår i denna avhandling, vilka är baserade på tre datainsamlingar. En enkät som mätte arbetsmiljöprioritering besvarades av 249 representanter vid 142 tillverkande företag (I & II). Fokusgruppintervjuer genomfördes med 66 arbetare på ett stort ståltillverkningsföretag, där deras erfarenheter och uppfattningar om säkerhet och risker i arbetet diskuterades (III). En enkät som mätte SAM, säkerhetskultur och arbetsmiljöprioritering besvarades av 280 representanter vid 197 tillverkande företag (IV). Information om företagens finansiella nyckeltal hämtades från ett kreditupplysningsföretag. De viktigaste resultaten från de fyra delstudierna kan bland annat sammanfattas med att lönsamheten uppfattades vara det mest prioriterade intresset vid företagen (I), och att avvägningar mellan produktivitet och säkerhet ansågs vara ett hinder för att kunna arbeta på ett säkert sätt (III). Chefer uppfattade generellt att arbetsmiljön prioriterades mer på företagen än vad skyddsombuden gjorde (I & IV). Uppfattningar om arbetsmiljöprioritering skiljde sig dock inte åt beroende på företagsstorlek (II & IV). Ansvaret för säkerheten på arbetet ansågs främst vila hos den enskilda individen, och risktagande betraktades komma ur en kombination av individuella faktorer och yttre omständigheter i arbetsmiljön (III). Att vara ett större företag, ha positiv säkerhetskultur och hög kreditvärdighet visade sig ha samband med att också ha ett bättre utvecklat SAM (IV). På motsvarande sätt, att vara ett mindre företag, ha negativ säkerhetskultur och låg kreditvärdighet befanns ha samband med att också ha ett sämre utvecklat SAM.

  • 23.
    Hasse, Nordlöf
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences, Social Medicine. Högskolan i Gävle, Akademin för hälsa och arbetsliv, Avdelningen för arbets- och folkhälsovetenskap.
    Wiitavaara, Birgitta
    Högskolan i Gävle, Akademin för hälsa och arbetsliv, Avdelningen för arbets- och folkhälsovetenskap.
    Högberg, Hans
    Högskolan i Gävle, Akademin för hälsa och arbetsliv, Avdelningen för arbets- och folkhälsovetenskap.
    Westerling, Ragnar
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences, Social Medicine.
    To measure OHS management practices in manufacturing companies2016Conference paper (Refereed)
    Abstract [en]

    Introduction: Manufacturing companies are bound to manage many different processes in their day-to-day operations. A systematic management of occupational health and safety (OHS) factors is necessary in order to comply with OHS legislation. Work environmental risks should be assessed and controlled, and if not controlled immediately, an action plan should be established and followed up on later. A successful OHS management should reduce hazards in the workplace and protect worker health and safety. But how can we accurately measure how well companies actually comply with OHS legislation? Earlier measures exist, but they often assess the perceptions of the respondent rather than the circumstance of the company. The aim of this study was to develop and utilize a way to measure OHS management practices, by using a self-report-questionnaire distributed to companies.   

    Methods: A questionnaire was developed in several steps. OHS legislation and earlier studies were read in order to identify different relevant indicators for OHS management compliance. These indicators were then compiled, sorted, and narrowed down in order to produce a manageable and relevant list of 13 indicators. A criterion for relevant indicators was that they together should provide appropriate information on whether a company has come far, or not so far, in arranging a systematic OHS management. A yes–no question was formulated for each of the indicators. Three examples of indicators were: whether the company has written routines stating how the OHS management should be carried out or not, whether written risk assessments have been conducted during the last 12 months or not, and whether the company has routines in place for reporting incidents that occur (near-misses and accidents) or not. The indicators and questions were chosen and formulated in order to measure as much of an objective circumstance at the companies as possible. The rationale is that, either the companies have an arrangement for these indicators, or they do not. Questionnaires were sent to a sample of manufacturing companies (n=238) in central Sweden, for one manager and one safety delegate per company to answer.

    Results and discussion: Taken together, the 13 indicators formed an OHS management practices index. A yes-answer for each indicator was counted as 1 and no as 0, and the scores were summed together. Other measures were also collected for this study: companies’ safety culture, overall work environment priority, company profitability, and company size. The OHS management practices index will undergo psychometric testing for validity and reliability, such as test-retest and Cronbach’s alpha test statistic. The development process and usability of the OHS management practices measure will be presented in more detail at the conference. We believe that this novel measure of OHS management practices, as employed in this study, can be of interest for future research within the field of OHS. This approach provides a relatively straightforward way to measure companies’ OHS management practice using questionnaire items.

  • 24.
    Hasse, Nordlöf
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences, Social Medicine. Högskolan i Gävle, Akademin för hälsa och arbetsliv, Avdelningen för arbets- och folkhälsovetenskap.
    Wiitavaara, Birgitta
    Högskolan i Gävle, Akademin för hälsa och arbetsliv, Avdelningen för arbets- och folkhälsovetenskap.
    Winblad, Ulrika
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences.
    Wijk, Katarina
    Samhällsmedicin, Landstinget Gävleborg. Institutionen för pedagogik, didaktik och utbildningsstudier, Uppsala universitet..
    Westerling, Ragnar
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences, Social Medicine.
    A description of reasons for risk-taking at a large steel manufacturing company2013In: Ergonomics for equality: Nordic Ergonomics Society (NES), Reykjavík, Iceland, 11-14 august 2013, 2013Conference paper (Refereed)
    Abstract [en]

    Introduction: Risk-taking in an industrial work environment is a serious matter since it involves the risk for bodily injuries and in worst case death. The aim of this study was to investigate reasons for risk-taking at a large steel manufacturing company in Sweden which employs about 1000 people.

    Methods: Ten focus group interviews were conducted, each consisting of about 6–8 workers. The situation of safety at work was discussed in a semi-structured manner, letting the employees themselves explain the reasons behind risk-taking. The interviews were analyzed with qualitative content analysis.

    Results: Reasons for risk-taking were formed into the following six aspects: 1.Being new-at-work. 2.Being tired. 3.Being nonchalant to the safety risks. 4.Working on routine and being “blind-to-flaws”. 5.Too little staff to do the job. 6.To stress, hurry, and work faster in order to save time. Conclusion: One’s state-of-the-day and external work environment circumstances affects risk-taking.

  • 25.
    Hasse, Nordlöf
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences, Social Medicine. Högskolan i Gävle, Akademin för hälsa och arbetsliv, Avdelningen för arbets- och folkhälsovetenskap.
    Wiitavaara, Birgitta
    Högskolan i Gävle, Akademin för hälsa och arbetsliv, Avdelningen för arbets- och folkhälsovetenskap.
    Winblad, Ulrika
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences.
    Wijk, Katarina
    Samhällsmedicin, Landstinget Gävleborg. Institutionen för pedagogik, didaktik och utbildningsstudier, Uppsala universitet..
    Westerling, Ragnar
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences, Social Medicine.
    En beskrivning av anledningar till risktagande vid ett stort stålindustriföretag2013Conference paper (Other academic)
    Abstract [sv]

    Introduktion: Risktagande i en industriell arbetsmiljö är allvarligt eftersom det involverar risk för kroppsskada eller i värsta fall död. Syftet med föreliggande studie var att undersöka anledningar till risktagande, beskrivna av arbetare. Studien genomfördes i samarbete med ett stort svenskt stålindustriföretag med cirka 1000 anställda på den berörda orten.

    Metod: Studien hade en kvalitativ och beskrivande studiedesign. Datainsamlingen bestod av tio fokusgruppintervjuer med ca 6–8 arbetare per grupp och deltagarna var anställda i produktionen. Deltagarna rekryterades från samtliga av företagets fem huvudavdelningar för att få ett urval med maximal variation, och det slumpades fram vilka skiftlag som tillfrågades att delta. Intervjuerna hade en längd av 75 minuter och spelades in digitalt med en diktafon. Säkerhet på arbetet diskuterades på ett semi-strukturerat sätt, genom att låta arbetarna själva berätta och förklara anledningar till risktagande. Under intervjuerna lades betoningen på följdfrågor där deltagarna ombads att utveckla sina svar och använda egna exempel. Därutöver samlades bakgrundsdata in om deltagarna genom att de fyllde i ett kort frågeformulär. Intervjuerna transkriberades ordagrant och analyserades med kvalitativ innehållsanalys.

    Resultat: Anledningar till risktagande formades till följande sex aspekter: 1.Att vara ny på jobbet. 2.Att vara trött. 3.Att vara nonchalant inför riskerna. 4.Att arbeta på rutin och vara ”hemmablind”. 5.Att det finns för lite personal för att göra jobbet. 6.Att stressa, skynda sig och arbeta fortare för att spara tid. Ett incitament för anställda att riskera sin egen säkerhet kan till exempel vara att inte använda de avsedda verktygen för att snabbt få igång produktionen igen om ett stopp inträffar. Arbetarna upplevde att ledningen inte vill att produktionen ska gå långsamt, vilket dock användandet av rätt verktyg kan medföra. De upplevde också att ledningen inte vill att tillfälliga personalreduceringar skall påverka produktionstakten. Slutsats: Dels individens dagsform och dels yttre omständigheter i arbetsmiljön påverkar risktagandet.

  • 26.
    Hedlund, Niclas
    Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology.
    Tyst kunskap och produktdatasystem vid medicinteknisk tillverkning: Pilotstudie av system för produktdatahantering och kartläggning av den tysta kunskapen vid Nationellt respirationscetrum, NRC2009Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    This thesis looks at two sides of the same coin: how to support the production and future development at a specialist medical technology department at Danderyd Hospital. The two sides are; a pilot study of a product management system (PDM) and an interview based study on the characteristics of the silent knowledge of the technicians. The department (National respiratory centre, NRC) is facing retirement of several key employees.

    The technical study shows that the success of an implementation is largely dependent on the users’ prior knowledge and use of a 3D Computer aided design system (CAD).The system itself is shown to fulfill the Lifecycle requirement of tracking the products (mostly tracheostomy tubes) but without a CAD centered workflow, some substantial education and preferably some new recruits, an implementation of the PDM system will fail. The author recommends development of the current “low-tech” system of MS Excel and Access rather than redistribute the dependency from technician towards a complex, commercial software and its vendor.

    The analysis of the technicians’ silent knowledge with the newly developed method, epithet for silent knowledge (ETK), shows that the longer employment time:

    • the more differentiated technicians become in describing their work,
    • practical knowledge are regarded higher and
    • the social and collective problem solving factors of the work becomes more important.

    Typically, it is shown that a new employee should preferably enjoy problem solving, being pragmatic and social as well as having some prior education or work experience in a CAD and/or a PDM system.

  • 27.
    Hembäck, Theo
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Al Mizori, Omar
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Ställtidsreduktion på S:t Eriks i Vara: SMED-analys på maskin T22018Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Improvements in reducing changeover time(that is, the time ittakes to change production from one product variant to another) isan important part for the optimization of production as it entailsa more flexible production and reduced inventory costs. S:t EriksAB in Vara are investigating the possibilities of reducing thechangeover time for one of their machines that manufacturesconcrete slabs in two sizes; 35x35cm and 50x50cm. It is thechangeover between these different products that is the main focusof this paper and the goal is to halve the changeover time.The research is based on SMED (Single Minute Exchange of Die), amethod which was developed by Shigeo Shingo during his time atToyota. It was made specifically for changeover reduction and isan important part of Lean manufacturing. The preparatory workconsisted mainly of literary studies, the purpose of which was togain knowledge regarding which types of data that needed to becollected during the observation of the changeover. The collectionof the data consisted in empirical studies which were documentedin the form of handwritten notes, photography and video capturing.Conversations with various employees complemented some of thecollected data.The results consists of documentation regarding the relevantcomponents of the machine and the operations of the changeover,whom are divided into external and internal operations. A coupleof suggestions for conversions from internal to externaloperations where put forth and which of the operations that couldbe performed parallel to each other. All of these suggestions werecompiled into a work schedule which suggests that a halving of thechangeover time is possible. Suggestions regarding safety,ergonomics and standardisation of some of the operations werepresented in the form of tooling stations, standardisation offasteners, standardisation of the positioning of components andthe introduction of a traverse and travelators. The potentialimprovement if all of the suggestions are implemented werevisualized in two spaghetti diagram whom contrasted the movementpatterns before and after

  • 28.
    Holgersson, Emil
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Förbättringsarbete för beställning och hantering av grafitmaterial: Vid CVD-beläggningen, Sandvik Coromant Gimo2016Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Sandvik Coromant is a worldwide supplier of tools, tooling solutions and know-how

    to the metalworking industry. Sandvik Coromant in Gimo is manufacturing various

    models of carbide inserts for metal cutting. The majority of the inserts are coated to

    create a unique combination of toughness and wear resistance, even in complex

    shapes.

     

    The inserts are transported through the coating process in a charge, the charge

    almost completely consists of graphite materials of various design e.g. load carriers.

    The graphite material will eventually wear out and must be replaced with new

    graphite. Sandvik puts through several charges per day which makes the consumption

    of graphite great. The graphite material is relatively expensive and Sandvik therefore

    spends large amounts of money each year on new graphite.

     

    Unclear structure in the operation of the order and management of new graphite

    materials have led to e.g. unnecessary inventories, at times material shortages and

    uneven loading of the coating ovens. The aim of the thesis has been to investigate and

    analyze current way of working regarding ordering and handling of graphite materials

    and to come up with a concrete proposal for improvement of the working methods.

     

    The project was divided into two phases, a situation analysis and a design phase.

    Phase one was to make an overall situation analysis to create a clear picture of how

    the work is done today (May 2016) and find out areas for improvement. Current

    situation analysis was based on interviews and practice with operators, technicians

    and the production manager for the concerned department.

    Phase two was the design of an improvement proposal for a new way to work. It was

    initiated by a literature study to find ideas, possible concepts and a firmer relevant

    foundation of knowledge. In order to define the project, a decision about the projects

    boundaries was made with the department manager, production manager and the

    supervisor. The design was then created through a workshop / meeting with

    operators in the department. The workshop was coordinated to go through the

    problem and get perspectives and views on how a new way of working could be

    created.

     

    The result was a proposal for a new way of working for ordering graphite material. It

    is based on having a system that uses kanban card to visualizes when the order are to

    be made and initiates the order process. The proposed approach organizes the

    inventory better, thereby reducing inventory levels for new pin carriers by 40%. It

    also means a possible reduction of the inventory of graphite storage at the supplier,

    the storage at the supplier could be reduced by 43%.

  • 29.
    Högström, Robert
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Förbättring och effektivisering av materialhantering och materialflöden2014Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Atlas Copco Craelius är en del av Atlas Copcos division Geotechnical Drilling and Exploration inom affärsområdet anläggnings- och gruvteknik. Atlas Copco Craelius som är beläget i Märsta utanför Stockholm utvecklar, tillverkar och marknadsför utrustning för undersöksborrning, grundläggning och markförstärkning.

    Detta examensarbete syftar till att identifiera möjliga förbättringsområden i materialhanteringen och effektivisering av materialflöden. Fokus för examensarbetet har riktats mot vilken strategi och principer som används för lagerhållningen och utformning av lagerlayouten. Examensarbetet är också en del av Atlas Copco Craelius kontinuerliga verksamhet om att ständigt utveckla och förbättra verksamheten och arbetsmetoder.

    I examensarbetet har en organisationsjämförelse gjorts mot både Scania och Öhlins för att nyansera infallsvinklarna och bidra med ett annat perspektiv på verksamheten.

    Slutligen har denna rapport författats innehållande förbättrings- och utvecklingsområden med förslag på hur materialhanteringen kan förbättras samt materialflöden effektiviseras, med reducerade ledtider och transporter samt förbättrad arbetsmiljö som positiva effekter.

  • 30.
    Johansson, Emil
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Taxén, Christian
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Digital produktutveckling: Stage gate, S:t Eriks2015Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    This thesis revolves around product development in a medium-sized Swedish company. The company in question is called S:t Erik and manufactures a wide range of products made out of concrete and operates in several locations in Sweden. The study has been carried out during 20 weeks with a starting point in January, year 2015. The goal of the study is to deliver a directly implementable development process that support the company's vision and aim towards a more reliable and resource-saving product development process. The study has been conducted through interviews with people directly involved in the product development process. In addition to the interviews, an observational study carried out in the company's production unit in Uppsala and a benchmarking at S:t Eriks plant in Staffanstorp. Which though co-examination with theory revolving the Stage gate process formed the basis for the developed proposals for improvement. To achieve a more accurate product development S:t Erik is recommended to work with its product development on a project basis with clear guidance in the form of a dedicated project manager in combination with a standardized development procedure. Through a proposed model including the work guidelines and though structured development phases S:t Eriks is presented with the opportunity to drastically decrease the risk involved with the company’s product development. The result also includes a proposal to carry out the proposed working model through the online feature in Word, in response to discovered problems revolving communication, access to information and transfer of knowledge. To ensure that S:t Erik is able to interpret and meet the expressed customer need, and at the same time simplify the internal communication they are recommended to incorporate a 3D printer in the early stages of the product development. For additional ways to meet customer needs a concept collection folder available for quick and easy collection of ideas and suggestions online or alternatively on the company intranet is suggested. Finally a procedure for how the working model could be used in practise is presented in an effort to archive a successful implementation at S:t Eriks.

  • 31.
    Karlsson, Joakim
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences.
    Optimization of Electron Beam Melting for Production of Small Components in Biocompatible Titanium Grades2015Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Additive manufacturing (AM), also called 3D-printing, are technologies where parts are formed from the bottom up by adding material layer-by-layer on top of each other. Electron Beam Melting (EBM) is an AM technique capable of manufacturing fully solid metallic parts, using a high-intensity electron beam to melt powder particles in layers to form finished components. Compared to conventional machining, EBM offers enhanced efficiency for production of customized and patient specific parts such as e.g. dental prosthetics. However, dental prosthetics are challenging to produce by EBM, as their small sizes mean that mechanical and surface properties may be altered as part sizes decreases.

    The aim of this thesis is to gain new insights that could lead to optimization for production of small sized components in the EBM. The work is focused to understand the process-property relationships for small size components production.

    To improve the surface resolution and part detailing, a smaller sized powder was used for production and compared to parts made with standard sized powder. The surface-, chemical and mechanical properties were evaluated for parts produced with both types of powders. The results indicate that the surface roughness may be influenced by powder and build layer thickness size, whereas the mechanical properties showed no influence of the layer-wise production. However, the mechanical properties are dependent on part size. The outermost surface of the parts consists of a surface oxide dominated by TiO2, formed as a result of reaction between the surface and residual gases in the EBM build chamber. The surface oxide thickness is comparable to that of a conventionally machined surface, but is dependent on build height.

    This work concludes that the surface resolution and component detailing can be improved by various measures. Provided that proper process themes are used, the EBM manufactured material is homogenous with properties comparable to conventional produced titanium. It has also been shown that the material properties will be altered for small components. The results point towards different ways of optimizing manufacturing of dental prosthetics by EBM, which will make dental prosthetics available for an increased number of patients.

    List of papers
    1. Characterization and comparison of materials produced by Electron Beam Melting (EBM) of two different Ti-6Al-4V powder fractions
    Open this publication in new window or tab >>Characterization and comparison of materials produced by Electron Beam Melting (EBM) of two different Ti-6Al-4V powder fractions
    2013 (English)In: Journal of Materials Processing Technology, ISSN 0924-0136, E-ISSN 1873-4774, Vol. 213, no 12, p. 2109-2118Article in journal (Refereed) Published
    Abstract [en]

    Electron Beam Melting (EBM) has been recognized as a revolutionary technique to produce mass-customized parts to near-net-shape from various metallic materials. The technique produces parts with unique geometries from a powder stock material and uses an electron beam to melt the powder layer-by-layer to fully solid structures. In this study we have investigated the use of two different Ti-6Al-4V powders of different size fractions in the EBM process; a larger 45-100 mu m powder, and a smaller 25-45 mu m powder. We have also investigated the effects of two build layer thicknesses, 70 mu m and 50 mu m. respectively. We hypothesize that the smaller powder has the potential to improve surface resolution of parts produced in the EBM process. The EBM as-built parts were investigated regarding surface and bulk chemistry, surface oxide thickness, macro- and microstructure, surface appearance and mechanical properties. We conclude from the results that both powders and both build layer thicknesses are feasible to use in the EBM process. The investigated material properties were not significantly affected by powder size or layer thickness within the studied range of process parameters. However, the surface appearance was found to be different for the samples made with the different powder sizes.

    Keywords
    Electron Beam Melting, Titanium alloy, Chemical properties, Surface analysis, Microstructure, Mechanical properties
    National Category
    Engineering and Technology
    Research subject
    Engineering Science with specialization in Materials Science
    Identifiers
    urn:nbn:se:uu:diva-210166 (URN)10.1016/j.jmatprotec.2013.06.010 (DOI)000325236200006 ()
    Available from: 2013-11-04 Created: 2013-11-04 Last updated: 2018-02-08Bibliographically approved
    2. Thickness dependency of mechanical properties for thin-walled titanium parts manufactured by Electron Beam Melting (EBM®)
    Open this publication in new window or tab >>Thickness dependency of mechanical properties for thin-walled titanium parts manufactured by Electron Beam Melting (EBM®)
    Show others...
    (English)In: Additive Manufacturing Journal, ISSN 2214-8604Article in journal (Refereed) Submitted
    Abstract [en]

    Metal powder bed additive manufacturing technologies, such as the Electron Beam Melting process, facilitate a high degree of geometric flexibility and have been demonstrated as useful production techniques for metallic parts.  

    However, the EBM process is typically associated with lower resolutions and higher surface roughness compared to similar laser-based powder bed metal processes. In part, this difference is related to the larger powder size distribution and thicker layers normally use As part of an effort to improve the resolution and surface roughness of EBM fabricated components, this study investigates the feasibility of fabricating components with a smaller powder size fraction and layer thickness (similar to laser based processes). The surface morphology, microstructure and tensile properties of the produced samples were evaluated. The findings indicate that microstructure is dependent on wall-thickness and that, for thin walled structures, tensile properties can become dominated by variations in surface roughness.

    Place, publisher, year, edition, pages
    Elsevier
    Keywords
    Additive Manufacturing; Electron Beam Melting; Ti-6Al-4V; Mechanical Properties
    National Category
    Production Engineering, Human Work Science and Ergonomics Metallurgy and Metallic Materials Medical Materials
    Research subject
    Engineering Science with specialization in Materials Science
    Identifiers
    urn:nbn:se:uu:diva-236648 (URN)
    Available from: 2014-11-20 Created: 2014-11-20 Last updated: 2015-02-03
    3. Digital Image Correlation analysis of local strain fields on Ti6Al4V manufactured by Electron Beam Melting
    Open this publication in new window or tab >>Digital Image Correlation analysis of local strain fields on Ti6Al4V manufactured by Electron Beam Melting
    Show others...
    2014 (English)In: Materials Science & Engineering: A, ISSN 0921-5093, E-ISSN 1873-4936, Vol. 618, p. 456-461Article in journal (Refereed) Published
    Abstract [en]

    Additive manufacturing, or 3D-printing as it is often called, build parts in a layer-by-layer fashion. A common concern, regardless of the specific additive manufacturing technique used, is the risk of inadequate fusion between the adjacent layers which in turn may cause inferior mechanical properties. In this work, the local strain properties of titanium parts produced by Electron Beam Melting (EBM®) were studied in order to gain information about the quality of fusion of the stock powder material used in the process. By using Digital Image Correlation (DIC) the strain fields in the individual layers were analyzed, as well as the global strain behavior of the bulk material. The results show that fully solid titanium parts manufactured by EBM are homogenous and do not experience local deformation behavior, neither on local nor on a global level.

    Place, publisher, year, edition, pages
    Elsevier, 2014
    Keywords
    Additive manufacturing; Electron Beam Melting; Titanium alloys; Mechanical; Characterization; Digital Image Correlation
    National Category
    Production Engineering, Human Work Science and Ergonomics Metallurgy and Metallic Materials
    Research subject
    Engineering Science with specialization in Materials Science
    Identifiers
    urn:nbn:se:uu:diva-236653 (URN)10.1016/j.msea.2014.09.022 (DOI)000344439500055 ()
    Available from: 2014-11-20 Created: 2014-11-20 Last updated: 2018-02-08Bibliographically approved
    4. Thickness dependency of surface properties for thin-walled titanium parts manufactured by Electron Beam Melting (EBM®)
    Open this publication in new window or tab >>Thickness dependency of surface properties for thin-walled titanium parts manufactured by Electron Beam Melting (EBM®)
    Show others...
    (English)In: Additive Manufacturing Journal, ISSN 2214-8604Article in journal (Refereed) Submitted
    Abstract [en]

    The surface morphology of components produced by powder bed metal additive manufacturing is of interest for multiple industry sectors including biomedical and aerospace.  For some applications, improvements in surface finish can reduce or eliminate the requirement for secondary finishing processes. In this study, titanium alloy (Ti6Al4V) samples were manufactured using the Electron Beam Melting (EBM) process. The effect of variations in sample thickness, powder size distribution and layer thickness were measured with three different techniques, both for direct measurement and comparison of the techniques.  Ra-values in the range of 15 µm – 37 µm were obtained and varied depending on measurement technique. However, independent of technique, Ra values were found to be dependent on powder size distribution, build layer thickness, and wall thickness. Analytical transmission electron microscopy of cross sections prepared by focused ion beam milling revealed that the outermost surfaces consisted of an oxide layer of 5 nm -6 nm thickness.

    Keywords
    Additive Manufacturing, Electron Beam Melting, Ti-6Al-4V, Surface roughness, Surface properties, Transmission Electron Microscopy
    National Category
    Metallurgy and Metallic Materials Medical Materials Production Engineering, Human Work Science and Ergonomics
    Research subject
    Engineering Science with specialization in Materials Science
    Identifiers
    urn:nbn:se:uu:diva-236638 (URN)
    Available from: 2014-11-20 Created: 2014-11-20 Last updated: 2015-02-03
    5. Surface oxidation behavior of Ti–6Al–4V manufactured by Electron Beam Melting (EBM®)
    Open this publication in new window or tab >>Surface oxidation behavior of Ti–6Al–4V manufactured by Electron Beam Melting (EBM®)
    Show others...
    2015 (English)In: Journal of Manufacturing Processes, ISSN 1526-6125, Vol. 17, no 1, p. 120-126Article in journal (Refereed) Published
    Abstract [en]

    Additive manufacturing is an emerging manufacturing technology that enables production of patient spe-cific implants, today primarily out of titanium. For optimal functionality and proper integration betweenthe titanium implant and the body tissues surface properties, such as surface oxide thickness is of partic-ular importance, as it is primarily the surface of the material which interacts with the body. Hence, in thisstudy the surface oxidation behavior of titanium parts manufactured by Electron Beam Melting (EBM®)is investigated using the surface sensitive techniques ToF-SIMS and AES. Oxide thicknesses comparableto those found on conventionally machined surfaces are found by both analysis techniques. However, abuild height dependency is discovered for different locations of the EBM®manufactured parts due to thepresence of trapped moisture in the machine and temperature gradients in the build.

    Place, publisher, year, edition, pages
    Elsevier, 2015
    Keywords
    Additive Manufacturing; Electron Beam Melting;Titanium alloys;Surface properties; Oxidation
    National Category
    Medical Materials Metallurgy and Metallic Materials Production Engineering, Human Work Science and Ergonomics
    Research subject
    Engineering Science with specialization in Materials Science
    Identifiers
    urn:nbn:se:uu:diva-236651 (URN)10.1016/j.jmapro.2014.08.005 (DOI)000349885600012 ()
    Available from: 2014-11-20 Created: 2014-11-20 Last updated: 2018-02-08Bibliographically approved
  • 32.
    Karlsson, Joakim
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences.
    Grandfield, Kathryn
    Dept of Materials Science & Engineering, School of Biomedical Engineering, McMaster University, Cananda.
    Horn, Timothy
    Center for Additive Manufacturing and Logistics, North Carolina State University.
    West, Harvey
    Center for Additive Manufacturing and Logistics, North Carolina State University.
    Aman, Ronald
    Center for Additive Manufacturing and Logistics, North Carolina State University.
    Snis, Anders
    Arcam AB.
    Engqvist, Håkan
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences.
    Lausmaa, Jukka
    SP Technical Research Institute of Sweden.
    Harrysson, Ola
    Center for Additive Manufacturing and Logistics, North Carolina State University.
    Thickness dependency of surface properties for thin-walled titanium parts manufactured by Electron Beam Melting (EBM®)In: Additive Manufacturing Journal, ISSN 2214-8604Article in journal (Refereed)
    Abstract [en]

    The surface morphology of components produced by powder bed metal additive manufacturing is of interest for multiple industry sectors including biomedical and aerospace.  For some applications, improvements in surface finish can reduce or eliminate the requirement for secondary finishing processes. In this study, titanium alloy (Ti6Al4V) samples were manufactured using the Electron Beam Melting (EBM) process. The effect of variations in sample thickness, powder size distribution and layer thickness were measured with three different techniques, both for direct measurement and comparison of the techniques.  Ra-values in the range of 15 µm – 37 µm were obtained and varied depending on measurement technique. However, independent of technique, Ra values were found to be dependent on powder size distribution, build layer thickness, and wall thickness. Analytical transmission electron microscopy of cross sections prepared by focused ion beam milling revealed that the outermost surfaces consisted of an oxide layer of 5 nm -6 nm thickness.

  • 33.
    Karlsson, Joakim
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences.
    Horn, Timothy
    Center for Additive Manufacturing and Logistics, North Carolina State University.
    West, Harvey
    Center for Additive Manufacturing and Logistics, North Carolina State University.
    Aman, Ronald
    Center for Additive Manufacturing and Logistics, North Carolina State University.
    Snis, Anders
    Arcam AB.
    Engqvist, Håkan
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences.
    Lausmaa, Jukka
    SP Technical Research Institute of Sweden.
    Harrysson, Ola
    Center for Additive Manufacturing and Logistics, North Carolina State University.
    Thickness dependency of mechanical properties for thin-walled titanium parts manufactured by Electron Beam Melting (EBM®)In: Additive Manufacturing Journal, ISSN 2214-8604Article in journal (Refereed)
    Abstract [en]

    Metal powder bed additive manufacturing technologies, such as the Electron Beam Melting process, facilitate a high degree of geometric flexibility and have been demonstrated as useful production techniques for metallic parts.  

    However, the EBM process is typically associated with lower resolutions and higher surface roughness compared to similar laser-based powder bed metal processes. In part, this difference is related to the larger powder size distribution and thicker layers normally use As part of an effort to improve the resolution and surface roughness of EBM fabricated components, this study investigates the feasibility of fabricating components with a smaller powder size fraction and layer thickness (similar to laser based processes). The surface morphology, microstructure and tensile properties of the produced samples were evaluated. The findings indicate that microstructure is dependent on wall-thickness and that, for thin walled structures, tensile properties can become dominated by variations in surface roughness.

  • 34.
    Karlsson, Joakim
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences.
    Norell, Mats
    Chalmers University of Technology.
    Ackelid, Ulf
    Arcam AB.
    Engqvist, Håkan
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences.
    Lausmaa, Jukka
    SP Technical Research Institute of Sweden.
    Surface oxidation behavior of Ti–6Al–4V manufactured by Electron Beam Melting (EBM®)2015In: Journal of Manufacturing Processes, ISSN 1526-6125, Vol. 17, no 1, p. 120-126Article in journal (Refereed)
    Abstract [en]

    Additive manufacturing is an emerging manufacturing technology that enables production of patient spe-cific implants, today primarily out of titanium. For optimal functionality and proper integration betweenthe titanium implant and the body tissues surface properties, such as surface oxide thickness is of partic-ular importance, as it is primarily the surface of the material which interacts with the body. Hence, in thisstudy the surface oxidation behavior of titanium parts manufactured by Electron Beam Melting (EBM®)is investigated using the surface sensitive techniques ToF-SIMS and AES. Oxide thicknesses comparableto those found on conventionally machined surfaces are found by both analysis techniques. However, abuild height dependency is discovered for different locations of the EBM®manufactured parts due to thepresence of trapped moisture in the machine and temperature gradients in the build.

  • 35.
    Karlsson, Joakim
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences.
    Sjögren, Torsten
    SP Technical Research Institute of Sweden.
    Snis, Anders
    Arcam AB.
    Engqvist, Håkan
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences.
    Lausmaa, Jukka
    SP Technical Research Institute of Sweden.
    Digital Image Correlation analysis of local strain fields on Ti6Al4V manufactured by Electron Beam Melting2014In: Materials Science & Engineering: A, ISSN 0921-5093, E-ISSN 1873-4936, Vol. 618, p. 456-461Article in journal (Refereed)
    Abstract [en]

    Additive manufacturing, or 3D-printing as it is often called, build parts in a layer-by-layer fashion. A common concern, regardless of the specific additive manufacturing technique used, is the risk of inadequate fusion between the adjacent layers which in turn may cause inferior mechanical properties. In this work, the local strain properties of titanium parts produced by Electron Beam Melting (EBM®) were studied in order to gain information about the quality of fusion of the stock powder material used in the process. By using Digital Image Correlation (DIC) the strain fields in the individual layers were analyzed, as well as the global strain behavior of the bulk material. The results show that fully solid titanium parts manufactured by EBM are homogenous and do not experience local deformation behavior, neither on local nor on a global level.

  • 36.
    Kavathatzopoulos, Iordanis
    Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Division of Visual Information and Interaction. Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computerized Image Analysis and Human-Computer Interaction.
    Assessing usability of IT systems2012In: Ergonomics for sustainability and growth / [ed] Antonsson, Ann-Beth; Hägg, Göran M., Stockholm: KTH Royal Institute of Technology, 2012Conference paper (Refereed)
    Abstract [en]

    Personal skills and group processes are necessary in the production of knowledge to design and manage usable systems. AvI is a questionnaire that correlates these parameters of usability to utility and work environment. The main goal of AvI is to create a description of the processes that are necessary to achieve good usability: user participation, knowledge support, networking for coordination and cooperation etc, defined as philosophizing processes at personal and group levels. AvI’s ambition is to indicate whether the preconditions for these processes are present in an organization, to allow these to arise and to function in a satisfying and fruitful way. The evaluation of AvI showed that reliability coefficients and correlations to independent criteria were high, supporting the original hypothesis: AvI can be used to acquire information about the above parameters of an IT system’s usability in an easy and quick way. Although AvI only provides an indicative value, such a diagnosis of the usability of an organization’s IT infrastructure is valuable as an alert and to determine the extent of further initiatives.

  • 37.
    Kokkonen, Liisa
    Gotland University, School of the Humanities and Social Science.
    Light Explosion: rekonstruktion av en akrylarmatur2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This report presents thesis of Liisa Kokkonen in collaboration with Muovikilpi Oy.

    The project’s goal is to find a new construction for an existing lamp made of acrylic. Form and design retains and the manufacturing occurs at Muovikilpi Oy. The project contains the new construction and manufacturing of the lamp and also a proposition for a set with floor and wall lamp.  

    The paper gives an outline of acrylic as material and how it reacts with light. The focus is in design and manufacturing of the lamp.

    The final product is result of high classic handwork with appealing and exciting design. The lamp highlights the finest capacity of acrylic; it’s a master work of plastics. 

  • 38.
    Kullvén, Håkan
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Industriföretagets ekonomi: Atlas Copco Industriteknik2018 (ed. 1)Book (Other academic)
    Abstract [sv]

    Hur styrs ett företag? Den här boken ger svar på frågan genom att följa ett industriföretag, Atlas Copco Industriteknik, för att få insikt i hur de planerar, genomför, redovisar och följer upp sin verksamhet. Här diskuteras aspekter som innovation, produktutveckling, finansiering, investering, marknadsföring, organisering, prissättning, produktion, produktkalkylering, utvärdering och redovisning. Hur gör Atlas Copco Industriteknik detta, och vilka andra metoder finns tillgängliga?

    Bokens perspektiv skiljer sig från andra läroböcker inom området, som vanligtvis börjar med att presentera allmänna modeller och sedan ger exempel på dessa. I den här boken kan läsaren i stället följa ett riktigt företag genom olika modeller och begrepp och därmed få en mer verklighetsbaserad förståelse för ämnet. 

  • 39.
    Kullvén, Håkan
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Management of an Industrial Company: Atlas Copco Industrial Technique2018 (ed. 1)Book (Other academic)
    Abstract [en]

    How is a company managed? In this book, this is explained by following an industrial company, Atlas Copco Industrial Technique, in order to understand how they plan, carry out, account for and follow up their business. The book presents activities such as innovation, product development, financing, investing, marketing, organizing, pricing, producing, costing, evaluating and accounting. How is this carried out by Atlas Copco Industrial Tecnique? Which are the possible alternatives?

    This perspective differs from other textbooks in the area, which usually start by describing the general models followed by presenting examples in relation to these. This book gives the reader the opportunity to follow a real company throughout different models and concepts, thus providing a more real-life understanding of the subject.

  • 40.
    Kurkkio, Oskar
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Analys av underhållsarbeten: En studie om referenstider och förbättringsförslagför underhållsarbeten2016Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of this thesis is to identify and investigate reference times for regularmaintenance work activities at the department responsible for maintenance ofunderground loaders at company LKAB:s mine in Kiruna, Sweden. The study is athesis of 15 credits at Uppsala University and has been carried out over 10 weeksduring the spring 2016. The majority of the work has been carried out on site.

    For a long time the underground loaders department has been struggling withrecurring breakdowns. Which affect the production in the mine and is a burden forthe maintenance personal. To live up to the expectations of the customer and be ableto plan the work procedures with better precision the department now wants to geta better picture of how much the planning of the maintenance work affects thedepartment, both in time and costs. The goal with the study is to proposeimprovements of how to minimize the time for maintenance work.

    The study has looked at internal statistics from 2015 and used it to map out whichactivities that have the biggest influence on the department. The first selectionresulted in six procedures which are carried out on the two types of loaders from SANDVIK that the company uses. The chosen activities are bucket replacement, tiltcylinder replacement, lift cylinder replacement and front and rear axle replacement.Due to the limitation of time for the study one of these six activities were chosen fora deeper analysis. The choice, after discussion with the mentor Sandy Doull at LKAB,fell on front and rear axle replacement.

    The conclusion after the study is that there are big opportunities for improvementsfor the department responsible for the underground loaders at LKAB. Workingactively with follow ups and implementing the Lean tool 5S they can reduce waste,variation and to improve productivity for all the work procedures. Improvements thatcould lead to big economic profits by reducing downtime in production and improveworking conditions for maintenance personal during the work procedures.

  • 41.
    Lindahl, Marcus
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Sköld, David
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Fornstedt, Helena
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    STALLING INNOVATION ADOPTION THROUGH THE EMERGENCE OF NEOCONSERVATIVE MARKET STRUCTURES – OBSERVATIONS FROM THE ENERGY SECTOR2015Conference paper (Refereed)
  • 42.
    Ljungberg, Emil
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
    Livscykelkostnad för olika grader av automatiserat underhåll: LCC för manuell och semiautomatisk kameratvätt i Sveriges vägtunnlar2016Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    At the Swedish Transport Administration two different maintenance strategies are practiced to keep cameras in road tunnels clean. The theory of Life Cycle Cost, LCC, is applied on maintenance depending on its Level of Automation, LoA, and is further developed. In the case of cameras, in Swedish road tunnels the processes demonstrate two different LoA. LCC is used to compare and analyze how the properties between semiautomatic and manual maintenance affect investment costs, operational costs and the cost of preventive and corrective maintenance. Semiautomatic cleaning maintenance of cameras in road tunnels indicate a larger LCC than manual maintenance. This is due to a larger investment cost for machinery, but a similar annual cost for preventive maintenance. The presented properties affecting LCC are placed in a general context. This emphasize the significance of examining costs at high level of detail and comprehend the properties causing the costs.

  • 43. Lundholm-Jonsson, Susanna
    Lektrappa för Naturlek2011Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The essay describes the bachelor project by Susanna Lundholm-Jonsson, in collaboration with Naturlek. Naturlek is a company founded in 2005, part of AL Land Consulting AB of Bro. Naturlek specializes in nature-friendly, recyclable products originated in Sweden, mainly used in playgrounds, products that require very little maintenance.

    The assignment was to design playground equipment with a new approach, yet suitable to their range of products.

    Emphasis has been on developing a product that has a soft and natural expression, somehow symbolizing the simple and natural. The purpose of "Lektrappan" is to inspire and encourage children to play, and it offers an alternative to the playground equipment available today.

    Focus has also been on the possibility to produce it at a reasonable cost.

    User groups were interviewed, consisting of pre-school teachers, teachers, school children and preschoolers. Study vistits as well as workshops were made, in which the children were given opportunity to share their thoughts about what a playground might look like. These views have since been used as a basis for the idea generating process.

    In this process a number of concepts were developed for presentation to the company. One concept was selected and further developed through sketches, models and 3D models.

    The work resulted in "Lektrappan". The frame is a stem of oak, with stairs that symbolizes the leaves.

  • 44.
    Mirzaei Langroodi, Negar
    Gotland University, School of the Humanities and Social Science.
    Miljöutbildande spel: förslag till nytt spel för barn 6-8 år Gro Play AB2011Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Can children play their way to a more eco-friendly lifestyle?

    The answer is yes, if you ask Patricia Rawecka, CEO of the company Gro Play AB. She has designed and developed three puzzles for children aged 3-5 years that are both eco-friendly and eco-educational. Given today's extreme consumer culture, she believes that with good design, pedagogy and children's play she can motivate the next generation to a more sustainable lifestyle. Both the vision for her company and also the starting point of this graduation project is to give children a chance to through their play create a foundation for a sustainable lifestyle. A broadening of the range for ages 6-8 years were in the context of interest to the company. On these grounds this projects problem formulation was written;

    - How should a game or a toy that holds a play value for children aged 6-8 years and is eco-educational, eco-friendly with a high play value be developed?

    Ten weeks of work finally resulted in the game "Environmental Heroes". The project was implemented in phases when it initially created a framework based on theories, interviews and information from Patricia. This then formed the basis for the remaining phases of the product development process.

    The game "Environmental Heroes" consists of two playing surfaces and a three-dimensional element in the form of fold-out walls on which the game's avatars can climb. The game is to quickly collect window with "good scenarios" on the lower playfield and then replace the current non-environmental scenarios on the upper playfield. After use, the game is easily folded into a flat package and all of the chips, avatars and parts are printed like puzzle pieces into the playfields. In doing so, the game is easy to carry. The material of the game consists of FSC cardboard covered with PP-foil who like the existing products in the range is and varnished. This also makes the game easy to recycle.

    The construction is possible to manufacture as it stays within the limits of construction. But there are still opportunities for improvement and there for 'Environmental Heroes' is not yet a finished product. More tests with different combinations of the target group and a prototype in the right material would be beneficial.

  • 45. Mohr, Steve
    et al.
    Höök, Mikael
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Global Energy Systems.
    Mudd, Gavin
    Evans, Geoffrey
    Projection of Australian coal production: Comparisons of four models2011In: Proceedings of the International Pittsburgh Coal Conference 2011, 2011Conference paper (Other academic)
    Abstract [en]

    Coal exports are an important source of revenue for Australia and for this reason Australian coal production and resources have been examined in detail. Two recoverable resource estimates, a Standard case and a High case, were determined. The Standard case calculated the likely recoverable coal resources in Australia to be 317 Gt, whereas the High scenario determined the maximal amount of recoverable coal resources at 367 Gt. The study performed forecasting by use of curve-fitting with Logistic and Gompertz curves as well as Static and Dynamic versions of a supply and demand model based on real world mineral exploitation.

    The different modelling approaches were used to project fossil fuel production and the outlooks were compared. Good agreement was found between the Logistic, Static and Dynamic supply and demand models with production peaking in 2119±6 at between 1.9 and 3.3 Gt/y. Contrasting these projections the Gompertz curves peak in 2084±5 at 1–1.1 Gt/y. It was argued that the Logistic, Static and Dynamic models are more likely to produce accurate projections than the Gompertz curve. The production forecast is based on existing technology and constraints and a qualitative discussion is presented on possible influences on future production, namely: export capacity, climate change, overburden management, environmental and social impacts and export market issues.

  • 46. Moser, - P.
    et al.
    Isaksson, - O.
    Okwir, Simon
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
    Seifert, - R. W.
    Manufacturing Management in Process Industries: The Impact of Market Conditions and Capital Expenditure on Firm Performance2019In: Transactions on Engineering Management, ISSN 0018-9391, Vol. -, no -Article in journal (Refereed)
    Abstract [en]

    Process industries operate in commodity markets with low product variety, little product differentiation, and highly capital-intensive manufacturing. Because prices are volatile and demand is uncertain, manufacturing capabilities become the main strategic competitive lever. The purpose of this paper is to evaluate the interplay between market conditions, capital expenditure, manufacturing flexibility, and production capacity to effectively analyze the consequences of manufacturing investments in both the short and the long terms. In order to achieve this, we developed an econometric model linking market conditions and operational decisions. We tested the model on a sample of 480 firms from the mining sector and 1053 firms from the oil and gas sector. The results show that firms in process industries follow the market with their investments, which impacts their operations in the short term as well as their capacity growth in the long term. Additionally, from our findings, we propose a firm value driver model that managers could consider when deciding on capital expenditures. Finally, our results indicate that the managers of financially healthy companies should resist the stock market's short-term pressure to reduce fixed costs and instead play the long game.

  • 47.
    Nordlöf, Hasse
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences, Social Medicine. Högskolan i Gävle, Centrum för belastningsskadeforskning. Högskolan i Gävle, Akademin för hälsa och arbetsliv, Avdelningen för arbets- och folkhälsovetenskap.
    Prerequisites and Possibilities for Manufacturing Companies to Prioritize and Manage Occupational Health and Safety2015Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Legislation demands that health and safety of humans at work must be secured. Today, far from every company has a functioning systematic management of occupational health and safety (OHS) in place to fulfill its legal obligations. Instead, other day-to-day tasks appear to have greater priority.

    The overall aim of this thesis was to investigate prerequisites and possibilities for manufacturing companies to prioritize and manage OHS, with focus on professional roles, company size, safety culture, and financial performance.

    Four papers (I–IV) are included in this thesis, based on three data collections. A questionnaire measuring the priority accorded to work environment was completed by 249 representatives of 142 manufacturing companies (I & II). Focus group interviews were conducted with 66 workers at a large steel-manufacturing company, discussing their experiences and perceptions of safety and risks at work (III). A questionnaire measuring OHS management practices, safety culture, and priority given to work environment was completed by 280 representatives of 197 manufacturing companies (IV). Information regarding the companies’ financial performance was retrieved from a credit bureau database.

    The main findings of the four papers demonstrated that profitability was considered as the most prioritized interest in the companies (I), and that trade-offs between productivity and safety is an obstacle to working safely (III). Managers generally perceived their companies to prioritize work environment factors more than the safety delegates did (I & IV). Perceptions of work environment priority did, however, not differ depending on company size (II & IV). Responsibility for safety was perceived to rest on the individual to the largest extent, and risk-taking was believed to originate from a combination of individual factors and external circumstances in the work environment (III). Larger company size, positive safety culture, and low risk in creditworthiness were found to be associated with better OHS management practices in companies (IV). Correspondingly, smaller company size, negative safety culture, and high risk in creditworthiness were found to be associated with worse OHS management practices.

    In summary, structural, social, and financial aspects seem to be important in companies’ possibilities for prioritizing and managing OHS. Recommendations for industry and future research are discussed.

    List of papers
    1. A comparison of managers’ and safety delegates’ perceptions of work environment priorities in the manufacturing industry
    Open this publication in new window or tab >>A comparison of managers’ and safety delegates’ perceptions of work environment priorities in the manufacturing industry
    2012 (English)In: Human Factors and Ergonomics in Manufacturing, ISSN 1090-8471, E-ISSN 1520-6564, Vol. 22, no 3, p. 235-247Article in journal (Refereed) Published
    Abstract [en]

    This study investigated the attention and priority accorded to factors of work environment within manufacturing companies, as perceived by managers and safety delegates at small- and medium-sized enterprises. Representatives from 142 Swedish manufacturing companies answered a 43-item questionnaire covering seven areas of the work environment and a priority-ranking question of company interests. Respondents (n = 249) rated the present situation and the situation one year earlier, using a visual analogue scale. The findings showed that both managers and safety delegates ranked profitability as the main company interest. Respondents rated the priorities of the work environment currently as higher than one year earlier (p = <0.05). Managers rated the priorities of the work environment higher than did the safety delegates (p = <0.05). We conclude that the two professional roles, managers and safety delegates, differ in their perceptions as of to which extent different work environment factors are being attended to.

    Keywords
    Occupational health and safety (OHS), Workplace, Small- and medium-sized enterprises (SMEs), Profitability, Professional roles
    National Category
    Social Sciences Work Sciences Production Engineering, Human Work Science and Ergonomics
    Identifiers
    urn:nbn:se:uu:diva-264511 (URN)10.1002/hfm.20263 (DOI)000303194700005 ()2-s2.0-84860676039 (Scopus ID)
    Projects
    Ergopriset
    Available from: 2010-10-05 Created: 2015-10-13 Last updated: 2018-06-26
    2. Perceptions of work environment priorities: Are there any differences by company size? — An ecological study
    Open this publication in new window or tab >>Perceptions of work environment priorities: Are there any differences by company size? — An ecological study
    2015 (English)In: Work: A journal of Prevention, Assesment and rehabilitation, ISSN 1051-9815, E-ISSN 1875-9270, Vol. 52, no 3, p. 697-706Article in journal (Refereed) Published
    Abstract [en]

    BACKGROUND: Earlier studies suggest that the quality of handling occupational health and safety (OHS) activities differs between companies of different sizes. Company size is a proxy variable for other variables affecting OHS performance.

    OBJECTIVE: The objective of this study was to investigate if there is an association between company size and perceptions of work environment prioritizations.

    METHODS: Data from 106 small- and medium-sized Swedish manufacturing companies was collected. One manager and one safety delegate at each company rated different aspects of their companies' work environment prioritizations with a 43-item questionnaire. Ratings were aggregated to a summary statistic for each company before analysis.

    RESULTS: No significant differences in perceptions of priority were found to be associated with company sizes. This is in contrast to earlier studies of objective differences. The respondents in small companies, however, showed significantly greater consensus in their ratings.

    CONCLUSIONS: Company size does not appear to be associated with perceptions of work environment prioritizations. Company size is an important proxy variable to study in order to understand what factors enable and obstruct safe and healthy workplaces. The work presented here should be viewed as an initial exploration to serve as direction for future academic work.

    Keywords
    Company size, Occupational health and safety (OHS), Ergonomics, Perceptions, Consensus
    National Category
    Work Sciences Production Engineering, Human Work Science and Ergonomics
    Identifiers
    urn:nbn:se:uu:diva-264512 (URN)10.3233/WOR-152123 (DOI)000366059600028 ()26409368 (PubMedID)
    Available from: 2014-02-06 Created: 2015-10-13 Last updated: 2017-12-01Bibliographically approved
    3. Safety culture and reasons for risk-taking at a large steel-manufacturing company: Investigating the worker perspective
    Open this publication in new window or tab >>Safety culture and reasons for risk-taking at a large steel-manufacturing company: Investigating the worker perspective
    Show others...
    2015 (English)In: Safety Science, ISSN 0925-7535, E-ISSN 1879-1042, Vol. 73, p. 126-135Article in journal (Refereed) Published
    Abstract [en]

    Workers in the steel-manufacturing industry face many safety risks due to the nature of the job. How well safety procedures and regulations are followed within an organization is considered to be influenced by the reigning culture of the organization. The aim of this study was to investigate and describe safety culture and risk-taking at a large steel-manufacturing company in Sweden by exploring workers’ experiences and perceptions of safety and risks. Ten focus group interviews were conducted with a total of 66 workers. In the interviews, the situation of safety at work was discussed in a semi-structured manner. The material was analyzed inductively using qualitative content analysis. The analysis resulted in a thorough description of safety culture and risk-taking at the company, based on the following five main categories: 1. Acceptance of risks, one simply has to accept the safety risks of the work environment, 2. Individual responsibility for safety, the responsibility for safe procedures rests to the largest extent on the individual, 3. Trade-off between productivity and safety, these are conflicting entities, wanting to produce as well as wanting to work safely, 4. Importance of communication, it is needed for safety actions to be effective, and 5. State-of-the-day and external conditions, an interplay between these factors affect risk-taking. In sociotechnical systems theory it is acknowledged that there are interactions between social and technical factors in organizations. The findings of this study are interpreted to be in line with a sociotechnical understanding of safety culture and risk-taking.

    National Category
    Health Sciences
    Research subject
    Social Medicine
    Identifiers
    urn:nbn:se:uu:diva-240270 (URN)10.1016/j.ssci.2014.11.020 (DOI)000348088600015 ()
    Available from: 2015-01-06 Created: 2015-01-06 Last updated: 2017-12-05
    4. A cross-sectional study of factors influencing occupational health and safety management practices in companies
    Open this publication in new window or tab >>A cross-sectional study of factors influencing occupational health and safety management practices in companies
    2017 (English)In: Safety Science, ISSN 0925-7535, E-ISSN 1879-1042, Vol. 95, p. 92-103Article in journal (Refereed) Published
    Abstract [en]

    Companies need to ensure a functioning occupational health and safety management (OHSM) system to protect human health and safety during work, but generally there are differences in how successful they are in this endeavor. Earlier research has indicated that factors like company size, safety culture, and different measures of financial performance may be related to the quality of OHSM practices in companies. Therefore, the aim of this study was to investigate whether these factors are associated with OHSM practices in companies. A postal questionnaire was used to collect data from a sample of Swedish manufacturing companies, and complementary data regarding the companies were retrieved from a credit bureau database. The statistical analysis was performed with ordinal regression analysis using generalized estimating equations. Different predictor variables were modeled with OHSM practices as the outcome variable, in order to calculate p-values and to estimate odds ratios. Company size, safety culture, and creditworthiness were found to be associated with better, as well as worse, OHSM practices in companies (depending on directionality). Practical implications for industry and future research are discussed.

    Keywords
    Occupational health and safety (OHS), Safety culture, Manufacturing, Work environment, Financial performance, Generalized estimating equations (GEE)
    National Category
    Work Sciences Production Engineering, Human Work Science and Ergonomics
    Identifiers
    urn:nbn:se:uu:diva-264510 (URN)10.1016/j.ssci.2017.02.008 (DOI)000399852500009 ()
    Available from: 2015-10-13 Created: 2015-10-13 Last updated: 2017-05-30Bibliographically approved
  • 48.
    Nordlöf, Hasse
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences, Social Medicine. Högskolan i Gävle, Centrum för belastningsskadeforskning. Högskolan i Gävle, Akademin för hälsa och arbetsliv, Avdelningen för arbets- och folkhälsovetenskap.
    Wiitavaara, Birgitta
    Högskolan i Gävle, Centrum för belastningsskadeforskning. Högskolan i Gävle, Akademin för hälsa och arbetsliv, Avdelningen för arbets- och folkhälsovetenskap.
    Högberg, Hans
    Högskolan i Gävle, Centrum för belastningsskadeforskning. Högskolan i Gävle, Akademin för hälsa och arbetsliv, Avdelningen för arbets- och folkhälsovetenskap.
    Westerling, Ragnar
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences, Social Medicine.
    A cross-sectional study of factors influencing occupational health and safety management practices in companies2017In: Safety Science, ISSN 0925-7535, E-ISSN 1879-1042, Vol. 95, p. 92-103Article in journal (Refereed)
    Abstract [en]

    Companies need to ensure a functioning occupational health and safety management (OHSM) system to protect human health and safety during work, but generally there are differences in how successful they are in this endeavor. Earlier research has indicated that factors like company size, safety culture, and different measures of financial performance may be related to the quality of OHSM practices in companies. Therefore, the aim of this study was to investigate whether these factors are associated with OHSM practices in companies. A postal questionnaire was used to collect data from a sample of Swedish manufacturing companies, and complementary data regarding the companies were retrieved from a credit bureau database. The statistical analysis was performed with ordinal regression analysis using generalized estimating equations. Different predictor variables were modeled with OHSM practices as the outcome variable, in order to calculate p-values and to estimate odds ratios. Company size, safety culture, and creditworthiness were found to be associated with better, as well as worse, OHSM practices in companies (depending on directionality). Practical implications for industry and future research are discussed.

  • 49.
    Nordlöf, Hasse
    et al.
    Högskolan i Gävle, Centrum för belastningsskadeforskning. Högskolan i Gävle, Akademin för hälsa och arbetsliv, Avdelningen för arbets- och folkhälsovetenskap.
    Wijk, Katarina
    Högskolan i Gävle, Centrum för belastningsskadeforskning. Högskolan i Gävle, Akademin för hälsa och arbetsliv, Avdelningen för arbets- och folkhälsovetenskap.
    Lindberg, Per
    Högskolan i Gävle, Centrum för belastningsskadeforskning. Högskolan i Gävle, Akademin för hälsa och arbetsliv, Avdelningen för arbets- och folkhälsovetenskap.
    A comparison of managers’ and safety delegates’ perceptions of work environment priorities in the manufacturing industry2012In: Human Factors and Ergonomics in Manufacturing, ISSN 1090-8471, E-ISSN 1520-6564, Vol. 22, no 3, p. 235-247Article in journal (Refereed)
    Abstract [en]

    This study investigated the attention and priority accorded to factors of work environment within manufacturing companies, as perceived by managers and safety delegates at small- and medium-sized enterprises. Representatives from 142 Swedish manufacturing companies answered a 43-item questionnaire covering seven areas of the work environment and a priority-ranking question of company interests. Respondents (n = 249) rated the present situation and the situation one year earlier, using a visual analogue scale. The findings showed that both managers and safety delegates ranked profitability as the main company interest. Respondents rated the priorities of the work environment currently as higher than one year earlier (p = <0.05). Managers rated the priorities of the work environment higher than did the safety delegates (p = <0.05). We conclude that the two professional roles, managers and safety delegates, differ in their perceptions as of to which extent different work environment factors are being attended to.

  • 50.
    Nordlöf, Hasse
    et al.
    Högskolan i Gävle, Centrum för belastningsskadeforskning. Högskolan i Gävle, Akademin för hälsa och arbetsliv, Avdelningen för arbets- och folkhälsovetenskap.
    Wijk, Katarina
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Educational Sciences. Samhällsmedicin, Landstinget Gävleborg; Institutionen för pedagogik, didaktik och utbildningsstudier, Uppsala universitet.
    Westergren, Karl-Erik
    Högskolan i Gävle, Centrum för belastningsskadeforskning. Högskolan i Gävle, Akademin för hälsa och arbetsliv, Avdelningen för arbets- och folkhälsovetenskap.
    Perceptions of work environment priorities: Are there any differences by company size? — An ecological study2015In: Work: A journal of Prevention, Assesment and rehabilitation, ISSN 1051-9815, E-ISSN 1875-9270, Vol. 52, no 3, p. 697-706Article in journal (Refereed)
    Abstract [en]

    BACKGROUND: Earlier studies suggest that the quality of handling occupational health and safety (OHS) activities differs between companies of different sizes. Company size is a proxy variable for other variables affecting OHS performance.

    OBJECTIVE: The objective of this study was to investigate if there is an association between company size and perceptions of work environment prioritizations.

    METHODS: Data from 106 small- and medium-sized Swedish manufacturing companies was collected. One manager and one safety delegate at each company rated different aspects of their companies' work environment prioritizations with a 43-item questionnaire. Ratings were aggregated to a summary statistic for each company before analysis.

    RESULTS: No significant differences in perceptions of priority were found to be associated with company sizes. This is in contrast to earlier studies of objective differences. The respondents in small companies, however, showed significantly greater consensus in their ratings.

    CONCLUSIONS: Company size does not appear to be associated with perceptions of work environment prioritizations. Company size is an important proxy variable to study in order to understand what factors enable and obstruct safe and healthy workplaces. The work presented here should be viewed as an initial exploration to serve as direction for future academic work.

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