COPPER ALLOY EXCELLENT IN LASER LIGHT ABSORPTION RATE, AND METHOD FOR PRODUCING THE SAME

• Main Authors: KATO JUN, OHIRA TAKUMI, SANO YOSUKE
• Format: Patent
• Language: English; Japanese
• Published: 24.09.2021
• Subjects: ADDITIVE MANUFACTURING TECHNOLOGY; ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING; ALLOYS; CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; PERFORMING OPERATIONS; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS

To provide a copper alloy excellent in laser light absorption rate that is desirable for applications such as laser processing, and to provide a method for producing the same.SOLUTION: The copper alloy powder excellent in laser light absorption rate according to the present invention has a structure in which, in a copper alloy containing S or Zr by 0.01 mass% or more and 1.0 mass% or less and the balance being unavoidable impurities and Cu, a plurality of intermetallic compounds comprising one or both of Cu1.96S and Cu2S or Cu5Zr are dispersed.SELECTED DRAWING: Figure 2 【課題】本発明は、レーザー加工などの用途として望ましいレーザー光吸収率に優れる銅合金とその製造方法の提供を目的とする。【解決手段】本発明のレーザー光吸収率に優れる銅合金粉末は、ＳもしくはＺｒを０．０１質量％以上１．０質量％以下含有し、残部不可避不純物とＣｕからなる銅合金中に、Ｃｕ１．９６Ｓ、Ｃｕ２Ｓの何れか一方あるいは両方もしくはＣｕ５Ｚｒからなる金属間化合物が複数分散されている組織を有していることを特徴とする。【選択図】図２