Copper-based composite powder of high-strength and high-corrosion-resistance copper-based monotectic alloy formed by selective laser melting

• Main Authors: ZHANG ZHIGUO, ZHOU SHENGFENG, YI YANLIANG, LI WEI, WANG XIAOJIAN, YANG JUNJIE
• Format: Patent
• Language: Chinese; English
• Published: 13.04.2021
• 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; CASTING; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; METALLURGY; PERFORMING OPERATIONS; POWDER METALLURGY; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WORKING METALLIC POWDER

The invention discloses copper-based composite powder of a high-strength and high-corrosion-resistance copper-based monotectic alloy formed by selective laser melting. The composite powder is characterized in that the high-strength and high-corrosion-resistance copper-based monotectic alloy is prepared by using the copper-based composite powder with the particle size of 40-50 mu m as a forming material and adopting a selective laser melting forming method. The copper-based composite powder has the advantages that the copper-based composite powder is suitable for the process characteristic of the ultrahigh cooling rate of selective laser melting forming, can be used for forming the copper-based monotectic alloy with a complex shape, a large structural size, high strength, high corrosion resistance and no cracks through the selective laser melting under the condition of high efficiency, and has a wide application prospect in the fields of electromagnetic gun guide rails, pantographs and the like. 本发明公开了一种激光选区熔化