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Influence from tool roughness on the risk of work material adhesion and transfer
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences.
2008 (English)Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

Influence from surface roughness of a forming tool surface on its ability to pick up work material was investigated by laboratory testing. One powder metallurgical tool steel was given different surface roughnesses and tested in sliding contact against one austenitic stainless steel (SS) and one aluminium alloy (Al). Generally, the risk of work material adhesion and transfer increased with the roughness of the tool material. However, SS gave a low friction and very little metal transfer for a tool roughness of the order of the relatively soft SS oxide thickness. The Al alloy, on the other hand, which oxide is much harder than the parent metal, has no critical surface roughness below which adhesive transfer will not occur. The oxide fractures and oxide fragments indent the tool surface increasing the risk of adhesion.

Place, publisher, year, edition, pages
2008. no 7-8
Keyword [en]
Aluminium, Aluminium alloys, Austenitic stainless steel, Dry sliding, Forming, Friction, Galling, Laboratory testing, Microscopy, Tool, Tool material, Tool roughness, Work material, Work material adhesion
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:uu:diva-285993OAI: oai:DiVA.org:uu-285993DiVA: diva2:921403
Conference
ICHT&SEDT 2008
Available from: 2016-04-20 Created: 2016-04-20 Last updated: 2016-04-20

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Hanson, MagnusHogmark, StureJacobson, Staffan

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