Experimental analysis of repairing H14 die steel surface by laser cladding

The damage of die metal parts is one of the key problems that affect its normal use. Laser cladding technology can solve this problem quickly and effectively. In this paper, the tungsten alloy powder was cladding on the metal surface by laser cladding, and the surface repair and strengthening technology were carried out. The influence of laser scanning speed on the microstructure of cladding layer metal was studied. The experimental results show that the metal parts with surface damage are repaired by laser cladding technology, and the cermet protective layer without pores and cracks is obtained. The hardness value of laser cladding layer is greatly improved than that of base material, which lays a good foundation for improving material performance.