US 12,084,745 B2
Copper alloy powder, method of producing additively-manufactured article, and additively-manufactured article
Ryusuke Tsubota, Osaka (JP); Yohei Oka, Osaka (JP); Akira Okamoto, Osaka (JP); Takayuki Nakamoto, Izumi (JP); Takahiro Sugahara, Izumi (JP); Naruaki Shinomiya, Izumi (JP); Mamoru Takemura, Izumi (JP); and Sohei Uchida, Izumi (JP)
Assigned to DAIHEN CORPORATION, Osaka (JP); and Osaka Research Institute of Industrial Science and Technology, Izumi (JP)
Filed by DAIHEN CORPORATION, Osaka (JP); and Osaka Research Institute of Industrial Science and Technology, Izumi (JP)
Filed on Mar. 4, 2021, as Appl. No. 17/192,125.
Application 17/192,125 is a division of application No. 15/791,675, filed on Oct. 24, 2017, granted, now 10,981,226.
Claims priority of application No. 2016-208895 (JP), filed on Oct. 25, 2016; application No. 2017-111709 (JP), filed on Jun. 6, 2017; and application No. 2017-193374 (JP), filed on Oct. 3, 2017.
Prior Publication US 2021/0187614 A1, Jun. 24, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. C22C 1/04 (2023.01); B22F 3/24 (2006.01); B22F 10/00 (2021.01); B22F 10/25 (2021.01); B22F 10/28 (2021.01); B22F 10/32 (2021.01); B22F 10/36 (2021.01); B22F 10/64 (2021.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); C22C 9/00 (2006.01); C22C 9/06 (2006.01); C22F 1/08 (2006.01); B22F 10/80 (2021.01); B22F 12/41 (2021.01); B22F 12/67 (2021.01); B33Y 80/00 (2015.01)
CPC C22C 1/0425 (2013.01) [B22F 3/24 (2013.01); B22F 10/00 (2021.01); B22F 10/28 (2021.01); B22F 10/64 (2021.01); B33Y 70/00 (2014.12); C22C 9/00 (2013.01); C22C 9/06 (2013.01); C22F 1/08 (2013.01); B22F 2003/248 (2013.01); B22F 10/25 (2021.01); B22F 10/32 (2021.01); B22F 10/36 (2021.01); B22F 10/80 (2021.01); B22F 12/41 (2021.01); B22F 12/67 (2021.01); B22F 2998/10 (2013.01); B33Y 10/00 (2014.12); B33Y 80/00 (2014.12); Y02P 10/25 (2015.11)] 6 Claims
OG exemplary drawing
 
1. A method of using a copper alloy powder, the method comprising:
preparing the copper alloy powder;
using the copper alloy powder as a raw material for a laser, electron beam or plasma additively manufactured article; and
heat-treating the laser, electron beam or plasma additively manufactured article such that the laser, electron beam or plasma additively manufactured article has an electrical conductivity of not less than 70% IACS,
wherein
the copper alloy powder is solidified into a predetermine shape by irradiating the copper alloy powder with at least one of the laser, the electron beam or the plasma,
the copper alloy powder consists of
more than 1.00 mass % and not more than 2.80 mass % of chromium;
optionally oxygen in an impurity content; and
a balance of copper.