Simulation of Impact Energy on Coil Spring by Shot Peening

This subject focuses on the simulated shot peening analysis of the impact energy and simulated impact energy distribution on coil spring. The authors studied hit condition by changing peening angle, and checked relationship between impact energy and residual stress. There have been no report that describes an analysis on the simulated shot peening effect on helical material whereas reports on flat material exist. In this paper, shot size, peening angle, and spring wire overlapping are considered. The effectiveness of this analysis is verified in comparison with the previous test result where light was used to check the shadow of shot shower.