The surface of the sliding bed board is degreasing and rusting at room temperature, and cleaned with alcohol; then the alloy powder is preset, that is, the iron-based, nickel-based or cobalt-based alloy powder to be cladding is pre-placed on the sliding bed board after the above treatment Surface, and use a scraper with guide rails to adjust the prefabricated alloy powder, so that it is evenly distributed on the surface of the sliding bed board and has an appropriate thickness to meet the requirements of the thickness of the coating after cladding; finally, the light cladding strengthens the sliding bed board. The gas CO2 laser, the worktable is a CNC machine tool, and the laser cladding is strengthened on the surface of the sliding bed plate.

Cladding power P=3500W～4500W, spot diameter D=2.5mm～3mm, scanning speed V=2.5～3m/min, overlap rate 30～40%.