Research progress on selective laser melting of hard composite materials

Composite materials are made of multiphase materials composed of two or more materials with different properties. Hard composite materials are often used as alloy materials for tool production due to their high hardness, high strength and good wear resistance. This paper briefly introduces the domestic and foreign research progress and technical status of hard composite materials by laser area melting, summarizes the influence of forming powder and process parameters on the forming performance characteristics of hard composite materials, as well as selective laser melting area of hard composite materials. The quality inspection and molding process simulation of the company, and prospects for the future development, provide a reference for the laser melting "3D printing" of hard composite materials. (paper)