Abstract
Ultrasonic surface rolling processing (USRP) is a surface nanocrystallization method developed recently, which can bring metal surface with superior properties. In order to obtain the motion state of the processing tip during USRP, a 3D dynamic finite element model was adopted to simulate the response of processing tip. The model parameters were provided by piezoelectric force sensor test system. Simulated results indicate that the peak value of impact force forms at the time of 25μ̓ and the maximum speed of working tip forms at the time of ̃̀μ̓.
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