Thickness dependency of mechanical properties for thin-walled titanium parts manufactured by Electron Beam Melting (EBM®)
(English)In: Additive Manufacturing Journal, ISSN 2214-8604Article in journal (Refereed) Submitted
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
Additive Manufacturing; Electron Beam Melting; Ti-6Al-4V; Mechanical Properties
Production Engineering, Human Work Science and Ergonomics Metallurgy and Metallic Materials Medical Materials
Research subject Engineering Science with specialization in Materials Science
IdentifiersURN: urn:nbn:se:uu:diva-236648OAI: oai:DiVA.org:uu-236648DiVA: diva2:764855