Journal
CIRP ANNALS-MANUFACTURING TECHNOLOGY
Volume 68, Issue 1, Pages 237-240Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cirp.2019.04.116
Keywords
Additive manufacturing; Selective laser melting (SLM); Aluminium
Funding
- European Union [723826]
- H2020 Societal Challenges Programme [723826] Funding Source: H2020 Societal Challenges Programme
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A disadvantage of selective laser melting (SLM)processes for the manufacture of large parts is their slow build time per unit volume. A hybrid route is to generate core simple shapes traditionally, for example by machining, followed by adding final features by SLM. Here the mechanical integrity of such hybrid parts is studied, choosing the building of AlSi10Mg by SLM on a machined AA6082 base, in the shape of a tensile test piece, as a simple example. These materials are chosen for their relevance to lightweight parts. As-built parts fail at the SLM/machined interface but standard heat treatments transfer failures to the machined material. Optimised SLM processing conditions and microstructures of the SLM and interfacial regions are reported. (C) 2019 Published by Elsevier Ltd on behalf of CIRP.
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