US 12,358,076 B2 · Laminating and shaping copper powder, laminated and shaped object, manufacturing method of laminated and shaped object, and laminating and shaping apparatus

Abstract

The present invention provides a laminating and shaping copper powder capable of shaping a laminated and shaped object of copper having a high electrical conductivity of, for example, 80% IACS or more. The present invention is a laminating and shaping copper powder obtained by mixing a nano-oxide of equal to or more than 0.01 wt % and equal to or less than 0.20 wt % and a pure copper powder. There is also provided a laminated and shaped object using the laminating and shaping copper powder of the present invention. There are also provided a manufacturing method of the laminated and shaped object using the laminating and shaping copper powder of the present invention and a laminating and shaping apparatus using the laminating and shaping copper powder.

Claims3

Dependent claims

A laminating and shaping copper powder, in which a pure copper powder and a nano-oxide of equal to or more than 0.10 wt % and equal to or less than 0.20 wt % are mixed,

wherein the pure copper powder comprises spherical particles having an average particle diameter equal to or more than 5 μm and equal to or less than 10 μm,
wherein the nano-oxide comprises spherical particles having a primary average particle diameter equal to or more than 10 nm and equal to or less than 100 nm,
wherein a powder resistance value of the laminating and shaping copper powder is equal to or more than (7.50E+5) Ω and equal to or less than (2.50E+7) Ω, and
wherein the laminating and shaping copper powder, when melted with energy from a laser, is shapable into an object having an electrical conductivity of at least 94.1% IACS.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

17/607,736Filed 4 Jun 2020

Priority

JP 2019-11042913 Jun 2019

Published

US 2022/0219232 A114 Jul 2022

Granted

15 Jul 2025

Term ends

Not estimatedThe source records don’t support an estimate.

Classification27 codes

B23K 26/342
Laser welding for purposes other than joining: build-up welding
B22F 1/00
Metallic powder
B22F 1/05
Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties: metallic powder characterised by the size or…
B22F 1/105
Metallic powder containing lubricating or binding agents; Metallic powder containing organic material: containing inorganic lubricating or binding…

Laminating and shaping copper powder, laminated and shaped object, manufacturing method of laminated and shaped object, and laminating and shaping apparatus

Life of this patent

Laminating and shaping copper powder, laminated and shaped object, manufacturing method of laminated and shaped object, and laminating and shaping apparatus

Life of this patent

Abstract

Claims3