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较详细地研究了表面应力状态和表面光洁度等对汽车用齿轮的疲劳寿命的影响规律。实验发现 ,随着喷丸形成的表面应力增大 ,齿轮疲劳寿命显著增加 ,而且表面光洁度的改善也能明显提高齿轮的疲劳寿命。
The effects of surface stress and surface finish on the fatigue life of automotive gears were studied in detail. The experimental results show that with the increase of the surface stress of shot peening, the fatigue life of the gear increases significantly, and the improvement of the surface finish can obviously improve the fatigue life of the gear.