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Laser Powder Bed Fusion of Metal Coated Copper Powders.

ABSTRACT: 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.

SUBMITTER: Lindstrom V 

PROVIDER: S-EPMC7475881 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature

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Laser Powder Bed Fusion of Metal Coated Copper Powders.

Lindström Viktor V   Liashenko Oleksii O   Zweiacker Kai K   Derevianko Serhii S   Morozovych Vladyslav V   Lyashenko Yurij Y   Leinenbach Christian C  

Materials (Basel, Switzerland) 20200807 16

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 sa  ...[more]

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