COPPER-BASED POWDER, SURFACE-COATED COPPER-BASED POWDER AND MIXED POWDER THEREOF, LAMINATED ARTICLE AND METHOD FOR PRODUCING SAME, AND VARIOUS METALLIC COMPONENTS

摘要

The purpose of the present invention is to provide: a copper-based powder, a surface-coated copper-based powder and a mixed powder thereof, each of which enables the formation of a powder layer by lining the powder at a small void ratio and a high density particularly when a laminated article is intended to be formed by the irradiation with a laser beam having a wavelength of 1.2 μm or shorter, and each of which is suitable for the formation of a laminated article made from a high-density copper-based material; a laminated article and a method for producing the laminated article; and various metallic components each formed using a laminated article. The copper-based powder according to the present invention can be used as a material which can be laminated and shaped by the irradiation with a laser beam having a wavelength of 1.2 μm or shorter, has an average particle diameter of 50 μm or less, and has a 50% particle diameter (d50) and a 10% particle diameter (d10) of 10 to 50 μm and 1 to 20 μm, respectively, in a cumulative particle size distribution as measured on the volume basis.