The article discussed the machine and physical characteristics of the stainless steel and the problem on the grinding processes and introduced the mechanism of the ultrasonic vibration precision belt grinding.Through grinding the 1Crl 3 stainless steel contrast of the precision belt grinding and general belt grinding,understand the role of the ultrasonic vibration on the grinding processes and proved that the ultrasonic vibration precision belt to grind the stainless steel and other difficult-to-machine mat...