轴花 meaning in Chinese

roller bump

Die design for the cold extrusion test of the half axle spline of minicars
微车半轴花键冷挤压实验模具设计
The result shows that the fracture has appeared fatigue feature , with initiation sites at the root grooves of the spline of the shafts
结果表明，轴的断口具有明显的疲劳特征，疲劳源位于二轴花键槽根部。
For pump shafts , the results reveal that the stress in the spline is higher than the other parts of the shaft , and the highest stress is at bottom and terminal of the spline . in fact , the broken of shafts is at the same position ; it demonstrates that the calculation is right
实践证明，轴断部位基本集中在潜油泵轴花键的根部，说明计算结果和实际是吻合的；对于潜油电机轴，应力集中点主要处在轴承键与环槽的交界处和花键的根部。
The network carbide and acicular martensites that existed in the microstructure of the root grooves of the spline due to improper carburating and quenching process of the shafts , led to the initiation and propagation of the intergranular microcracks and were the main reason that caused the early fracture of the shafts
由于渗碳淬火工艺不当，在二轴花键槽根部的组织中产生了网状破化物和粗大的针状马氏体，在外力作用下形成沿晶显微裂纹并扩展，是导致二轴疲劳断裂的主要原因。