Research Article

Experimental Analysis of Residual Stress and Bending Strength of Gear Tooth Surface after Shot Peening Treatment

Table 19

Ultimate bending strength under different degrees of reliability.

Degree of reliability (%)99959050105
Bending fatigue strength test with shot peening treatment (MPa)508.46517.06520.9531.09537.69539.15
Bending fatigue strength test without shot peening treatment (MPa)444.64466.89477.07504.77523.25527.40
Bending fatigue strength increase (%)14.3510.759.125.212.762.23