Experimental study of ultrasonic rolling processing

The ultrasonic vibration device and the rolling pressure measurement device are added on the ordinary rolling equipment, which form the ultrasonic rolling equipment. Due to the ultrasonic impact, ultrasonic rolling processing can obtain better surface quality and surface reinforcement than ordinary rolling processing. The experimental results show that the process parameters such as rolling pressure, rolling speed and feed volume effects obviously on the surface roughness and surface micro-hardness of the work piece ultrasonic rolled. In ultrasonic rolling processing, a relatively small rolling pressure can be used to obtain satisfactory processing results, avoiding the surface defects caused by large rolling pressure. Ultrasonic vibration frequency is generally 20kHz. And the vibration amplitude is generally 20 μm. The right combination of process parameters and the use of coolant provide the best process results.