Simulation Analysis with Randomly Distributed Multiple Projectiles and Experimental Study of Shot Peening

Shot peening technology is used to improve the fatigue strength of materials and parts, one most effective surface engineering techniques prolong life. In this paper, according finite element simulation analysis shot peening, a randomly distributed multiple-shot model was established. The superimposed effects multiple projectile impact craters in are fully considered. velocity, angle coverage on residual stress field roughness were studied. alloy steel 20MnTiB, widely automotive industry, as raw material process specimens. tests different parameters carried out. test results verified correctness accuracy random distribution multiple-shot. shot-peening proposed paper allows more accurate effect helps quickly set correct parameters. This further investigates life, providing basis for rational development solutions.