Laser Powder Bed Fusion of Metal Coated Copper Powders

Laser powder bed fusion (L-PBF) of copper alloys with high copper content is difficult due to the high infrared reflectivity and thermal conductivity of these alloys. In this study a simple and scalable method for coating copper powder with tin and nickel is presented, and suggested as an alloying s...

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Detalles Bibliográficos
Autores principales: Lindström, Viktor, Liashenko, Oleksii, Zweiacker, Kai, Derevianko, Serhii, Morozovych, Vladyslav, Lyashenko, Yurij, Leinenbach, Christian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7475881/
https://www.ncbi.nlm.nih.gov/pubmed/32784709
http://dx.doi.org/10.3390/ma13163493
Descripción
Sumario:Laser powder bed fusion (L-PBF) of copper alloys with high copper content is difficult due to the high infrared reflectivity and thermal conductivity of these alloys. In this study a simple and scalable method for coating copper powder with tin and nickel is presented, and suggested as an alloying strategy for such alloys. The coated powders were processed in a commercial L-PBF-machine at various scanning speeds. The samples made from coated powders show a lower amount of porosity compared to samples made from in-situ alloyed powders of similar composition.

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