Additive Manufacturing: Reproducibility of Metallic Parts

Konda Gokuldoss Prashanth, Sergio Scudino, Riddhi P. Chatterjee, Omar Salman, Jürgen Eckert

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The present study deals with the properties of five different metals/alloys (Al-12Si, Cu-10Sn and 316L—face centered cubic structure, CoCrMo and commercially pure Ti (CP-Ti)—hexagonal closed packed structure) fabricated by selective laser melting. The room temperature tensile properties of Al-12Si samples show good consistency in results within the experimental errors. Similar reproducible results were observed for sliding wear and corrosion experiments. The other metal/alloy systems also show repeatable tensile properties, with the tensile curves overlapping until the yield point. The curves may then follow the same path or show a marginal deviation (~10 MPa) until they reach the ultimate tensile strength and a negligible difference in ductility levels (of ~0.3%) is observed between the samples. The results show that selective laser melting is a reliable fabrication method to produce metallic materials with consistent and reproducible properties.
Original languageEnglish
Article number8
Number of pages7
Journal Technologies
Issue number1
Publication statusPublished - 18 Feb 2017

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