Study on Arc Erosive Resistance of TiB_2/Cu Laser Cladding Layer

The laser cladding in-situ TiB2/Cu composite coating was successfully synthesized on the surface of copper substrate using 500W YAG solid laser.The arc erosion resistance of the composite coating was measured on the self-regulating arc erosion equipment.The results show that the erosive degree of the laser cladding samples is weaker than that of pure copper,and the electric erosive resistance of the composite coating improves obviously.There are a few cracks and holes in the cladding.