The machining surface finish of the machining center is related to the material material, the choice of the tool, the sharpness of the blade, the mechanical rigidity of the machine tool (whether the machine tool shakes during the machining process), the matching of the parameters of the drive and the control system (including the stepper drive and the servo drive), and the parameter adjustment of the control system. Good processing results are closely linked to each factor, and the cause of the problem can be determined according to the specific situation to solve such problems. How to reduce the surface roughness on the machine tool, after the workpiece size is machined to the basic position with the ordinary tool, and then the original ordinary tool is machined again with the Hawker tool of the metal surface processing equipment, so that the surface roughness Ra value of the machined workpiece can easily reach 0.2 or less; The surface microhardness of the workpiece is increased by more than 20%; And greatly improve the surface wear resistance and corrosion resistance of the workpiece.