A Review of Laser Cladding on Copper and Copper Alloys

Laser cladding owns many advantages, such as high instantaneous heating temperature, fast cooling speed, metallurgical bonding between the coating and the substrate, small heat-affected zone and so on. Laser cladding has been used to improve the surface properties of copper and copper alloys for many years. This paper reviews the laser cladding on copper and copper alloys from the following three aspects: cladding materials, coating preparation process and functional coatings. The main problems and corresponding improvement measures for laser cladding on copper and copper alloys are summarized. Finally, the future research direction of laser cladding on copper and copper alloys are proposed.