Laser Powder Bed Fusion of Metal Coated Copper Powders

oleh: Viktor Lindström, Oleksii Liashenko, Kai Zweiacker, Serhii Derevianko, Vladyslav Morozovych, Yurij Lyashenko, Christian Leinenbach

Format: Article
Diterbitkan: MDPI AG 2020-08-01

Deskripsi

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.