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Thickness dependency of mechanical properties for thin-walled titanium parts manufactured by Electron Beam Melting (EBM)®
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Medicinteknik. Division of Applied Materials Science, Department of Engineering Sciences, Ångström Laboratory, Uppsala University.
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2016 (English)In: Additive Manufacturing, ISSN 2214-8604, Vol. 12, 45-50 p.Article in journal (Refereed) Published
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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 used. 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, 2016. Vol. 12, 45-50 p.
Keyword [en]
additive manufacturing, electron beam melting, mechanical properties, Titanium
National Category
Manufacturing, Surface and Joining Technology Materials Chemistry Other Materials Engineering
Identifiers
URN: urn:nbn:se:ri:diva-677DOI: 10.1016/j.addma.2016.06.009Scopus ID: 2-s2.0-84975221790OAI: oai:DiVA.org:ri-677DiVA: diva2:945116
Available from: 2016-06-30 Created: 2016-06-30 Last updated: 2017-01-06Bibliographically approved

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