Metal powder, method of producing additively-manufactured article, and additively-manufactured article
AssigneesDAIHEN Corporation, Osaka Research Institute of Industrial Science and Technology
InventorsRyusuke Tsubota, Jyunichi Tanaka, Yohei Oka, Takayuki Nakamoto, Takahiro Sugahara, Mamoru Takemura, Sohei Uchida
Life of this patent
Estimating the term…
Abstract
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.
Claims9
A method of producing an additively-manufactured article, the method comprising:
- a first step of forming a powder layer consisting of a copper alloy powder, the copper alloy powder consisting of not less than 0.10 mass % and not more than 1.00 mass % of at least one of chromium and silicon, a total content of the chromium and the silicon being not more than 1.00 mass %, and a balance of copper, an element besides the copper, the chromium, and the silicon being less than 0.10 mass %;
- and
- a second step of forming a shaped layer by melting and/or sintering the copper alloy powder so that metal particles included in the copper alloy powder fuse directly to each other at a predetermined position in the powder layer,
- the first step and the second step being successively repeated to stack the shaped layers and produce an additively-manufactured article.
A method of producing an additively-manufactured article, the method comprising:
- a first step of forming a powder layer consisting of a copper alloy powder, the copper alloy powder consisting of not less than 0.22 mass % and not more than 0.94 mass % of chromium, not less than 98.0 mass % of copper, and an impurity element, the impurity element being an element besides the copper and the chromium, the impurity element being less than 0.10 mass %, and
- a second step of forming a shaped layer by melting and/or sintering the copper alloy powder so that metal particles included in the copper alloy powder fuse directly to each other at a predetermined position in the powder layer,
- the first step and the second step being successively repeated to stack the shaped layers and produce an additively-manufactured article.
Dependencies are inferred from the claim text.