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一些轴承厂为提高制件精度，急需改进现役的冷镦机。有的轴承厂根据市场球轴承与滚子轴承需求量大小变化，想把钢球冷镦机改成滚子冷镦机，也有想把滚子冷镦机改成钢球冷镦机的。要想改造，必须首先了解工件变形工艺过程和机器的工作原理。钢球的镦制过程，是首先把料段用弹性
Some bearing factory to improve the precision parts, urgent need to improve the current service of cold heading machine. Some bearing factory according to the market demand for ball bearings and roller bearings size changes, want to ball cold heading machine into a cold heading machine, but also want to change the cold heading machine ball cold heading machine. To transform, we must first understand the work piece deformation process and the working principle of the machine. Ball upsetting process is the first section of the material with flexibility