Process for laser cladding of nickel-based tungsten carbide on surface of nickel-aluminum bronze

The invention relates to a process for laser cladding of nickel-based tungsten carbide on the surface of nickel-aluminum bronze. The process comprises the following steps that (1) the surface of the nickel-aluminum bronze is cleaned, and burrs and oil stains are removed; (2) process parameters are set through laser cladding equipment, and laser cladding is conducted on a nickel-aluminum bronze plate; and (3) after laser cladding is completed, after the nickel-aluminum bronze plate is naturally cooled, dye penetrant inspection is carried out, whether air holes, cracks and other phenomena exist or not is checked, then machining is carried out, the adopted nickel-based tungsten carbide is Ni50 + 60% WC, the hardness of a final cladding layer is HRC45-52, the thickness is 1.8-2.5 mm, and the defects of air holes, slag inclusion, micro cracks, spalling and the like do not exist, and tungsten carbide cladding on the surface of the nickel-aluminum bronze is achieved. The corrosion resistance and wear resistance of t