The Effect of Shot Peening with Cut Wire Shot Verses Cast Steel Shot on the fatigue Life of Coil Springs

Author:  Metallurgical Dept
Source:  Chevrolet Spring and Bumper, Livonia Michigan
Doc ID:  1959007
Year of Publication:  1959
Abstract:  
There is no question of the beneficial effect of shot peening on the fatigue life of coil springs. The question of type of shot peening matioial which will result in the best fatigue life, however, has been a controversial issue, This report attempts to evaluate the effect of peening with cut wire whot versus cast steel shot on the fatigue life of coil springs. Two identical prjoductions shot peening machines from the same manufacturer were used for this evaluation. An attempt was made to keep as many variables constant as possible.