advantages 2.1 the surface finish quality of treated workpiece are improved to 3 classes higher 2.2 surface hardness is increased by *0%**0% 2.3 the corrosion resistance of treated metal surface layer is improved several times,reaching **0 times at max 2.4 the stress field of treated metal surface alters,which helps to improved the comprehensive performance of metal workpieces and increase fatigue life by **3 times 2.5 fatigue resistance of treated metal surface is increased by **0%***0% 2.6 spot pits on metal surface can be removed after treatment, and initial damage of workpiece is reduced 2.7 friction drag of treated metal surface decreased by over *5%
