Title:
COPPER ALLOY POWDER FOR ADDITIVE MANUFACTURING AND METHOD FOR PRODUCING SAID COPPER ALLOY POWDER, AND COPPER ALLOY ADDITIVELY-MANUFACTURED ARTICLE AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2023/218985
Kind Code:
A1
Abstract:
The present invention can provide a high-quality copper alloy additively-manufactured article. The present invention is a copper alloy powder for additive manufacturing, to be used for manufacturing an additively-manufactured object by an additive manufacturing process. This copper alloy powder comprises more than 1.3 weight% but not more than 12.5 weight% of the element aluminum with the balance being copper and unavoidable impurities. The method for producing a copper alloy powder for additive manufacturing comprises: a step for producing, by a gas atomization process, a copper alloy powder in which more than 1.3 weight% but not more than 12.5 weight% of the element aluminum has been added to copper; and a step for classifying the produced copper alloy powder to particle diameters of at least 10 µm and not more than 45 µm. The method for producing a copper alloy additively-manufactured article comprises: a production step for producing, using the copper alloy powder for additive manufacturing and using an additive manufacturing apparatus, a copper alloy additively-manufactured article; and a tempering step of holding the produced copper alloy additively-manufactured article for 1 hour at from 400°C to 600°C.
Inventors:
IMAI KEN (JP)
SUGITANI YUJI (JP)
MATSUMOTO SEIICHI (JP)
SUGITANI YUJI (JP)
MATSUMOTO SEIICHI (JP)
Application Number:
PCT/JP2023/016612
Publication Date:
November 16, 2023
Filing Date:
April 27, 2023
Export Citation:
Assignee:
FUKUDA METAL FOIL & POWDER CO LTD (JP)
International Classes:
B22F1/00; B22F1/05; B22F9/08; B22F10/28; B22F10/38; B22F10/64; B33Y10/00; B33Y70/00; B33Y80/00; C22C9/01; C22F1/00; C22F1/08
Domestic Patent References:
| WO2017110445A1 | 2017-06-29 |
Foreign References:
| CN102162079A | 2011-08-24 | |||
| JPS56152902A | 1981-11-26 | |||
| JP2019536904A | 2019-12-19 | |||
| US20180133956A1 | 2018-05-17 | |||
| CN109396453A | 2019-03-01 |
Attorney, Agent or Firm:
KATO Takashi (JP)
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