Experimental Study on Shot Peening to Improve Diaphragm Spring Fatigue Life of Automobile Clutch

In the modern automotive industry, diaphragm spring clutch is widely used in light-duty and mini cars. Its service life depends on the performance and quality of pressure element-diaphragm spring. Improving diaphragm spring fatigue life and reducing elastic force decay rate will extend service life of diaphragm spring clutch. By comparing the fatigue life through bench test, shot peening on diaphragm spring can observably improve working fatigue life.