Ni60+25% WC alloy coating was prepared on the surface of H13 hot working die steel by using GS-HL-5000 central China numerical control and laser scanning instrument

and the Ni60+35%WC coating was prepared as a contrast. The microstructure of the cladding layer was observed by optical microscope and scanning electron microscope. The microhardness of the cladding layer was tested by HVS1000 digital micro hardness tester. The microhardness of the cladding layer was much higher than that of the H13 steel matrix. Using two-sample transposition

the wear resistance of cladding layer was tested by homemade anti-sediment abrasion testing machine. The results showed that

under the same conditions

the wear resistance of H13 steel nickel-based 25 WC laser cladding layer was significantly better than that of 45 steel. To a certain extent

it proved the effective role of laser cladding in improving the surface microstructure and properties.