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分析了汽车变速箱齿轮经喷丸处理后对疲劳强度的影响 ,通过喷丸强度试验 ,表面覆盖率试验确定了合理的喷丸处理工艺 ;通过疲劳试验 ,得出了喷丸处理对弯曲疲劳强度和接触疲劳强度的影响程度。结果表明 :喷丸处理能极大地提高齿轮的疲劳强度 ,从而提高齿轮的使用寿命。
The effect of shot peening on the fatigue strength of the transmission gear of the automobile was analyzed. The proper shot peening process was determined by the shot peening test and the surface coverage test. Through the fatigue test, the effect of shot peening on the bending fatigue strength And the impact of contact fatigue strength. The results show that the shot peening can greatly improve the fatigue strength of gears and improve the service life of gears.