This paper describes the performance test, contact fatigue strength test and bending fatigue strength test on the gear reducer of involute point contact Ferrographical analysis is made.
本文对渐开线点啮合齿轮减速器进行了性能试验、接触疲劳强度和弯曲疲劳强度试验，同时还进行了铁谱分析。
As for material's performance under the effect of dynamic loading, it plays an important role for welding residual stress in the analysis of material fatigue strength.
对于材料承受动力载荷性能的影响而言，焊接残余应力对材料疲劳寿命的影响是重要的。
Through analysis and calculation of the fatigue strength condition of component parts this paper discovers the erratam and analyses the reason.
通过对广泛应用于机械设计中的非对称循环下构件疲劳强度条件的分析，提出了存在的问题。
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