(1. School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081，China; 2. Shanxi Diesel Engine Industry Co., Ltd., Datong 037000, China)
Abstract：To investigate the influence of the laser shock processing (LSP) on the residual stress of the high-strength steel gear root, ABAQUS software is used to simulate the laser shock processing, and the experimental results are analyzed to verify the accuracy of the simulation model. The results show that this model accurately predicts the distribution of the residual stress on the gear root after LSP, and the law of LSP reflected by the simulation is consistent with the experimental results. According to the distribution of the residual stress, it is concluded that laser shock processing introduces near-surface compressive residual stress which varies in different directions. Specifically, the average value of the compressive residual stress along the gear root is larger than that in the vertical direction.
2020, 
