Daihen Corporation

Osaka Research Institute of Industrial Science and Technology

Mamoru Takemura

Ryusuke Tsubota

Yohei Oka

Takayuki Nakamoto

Takahiro Sugahara

Sohei Uchida

Akira Okamoto

Junichi Tanaka

Naruaki Shinomiya

Jyunichi Tanaka

A copper alloy powder is a copper alloy powder for additive manufacturing. The copper alloy powder contains more than 1.00 mass % and not more than 2.80 mass % of chromium, and a balance of copper. A method for producing an additively-manufactured article includes a first step of preparing a copper alloy powder containing more than 1.00 mass % and not more than 2.80 mass % of chromium and a balance of copper and a second step of producing the additively-manufactured article from the copper alloy powder, and the additively-manufactured article is produced such that forming a powder layer including the copper alloy powder, and solidifying the copper alloy powder at a predetermined position in the powder layer to form a shaped layer are sequentially repeated to stack such shaped layers to thus produce the additively-manufactured article.

Copper alloy powder, method of producing additively-manufactured article, and additively-manufactured article

A metal powder contains not less than 0.10 mass % and not more than 1.00 mass % of at least one of chromium and silicon, and a balance of copper. The total content of the chromium and the silicon is not more than 1.00 mass %. In accordance with an additive manufacturing method for this metal powder, an additively-manufactured article made from a copper alloy is provided. The additively-manufactured article has both an adequate mechanical strength and an adequate electrical conductivity.

Metal powder, method of producing additively-manufactured article, and additively-manufactured article

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Izumi, Japan

Mamoru Takemura