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双联齿轮(图1)是机械传动中的主要受力件,常常用锻造的方法提供零件毛坯。并以镦粗成形改变原轧制棒料沿轴的纤维方向,来满足零件的受力要求。
Double gear (Figure 1) is the main force in the mechanical transmission parts, often used forging blank parts. And to upset the original bar to change the direction along the axis of the fiber bar to meet the stress requirements of the parts.