旋转模切机砧辊处的偏心量认定与设计计算，有经验计算与工程计算的一般原则方法。
There are experiential and calculating method for eccentricity calculation and it's decision on urethane anvil-roll of the rotary die-cutter.
实验结果表明，利用凹面砧拔长，锻件心部能够获得更大的变形量，对空洞的压合效果更好。
Results show that cogging using concave anvil can increase the deformation at the center part of the billet and can press holes more effectively.
平砧上自由锻拔长，送进量的大小对其拔长效率起着至关重要的作用。
As free drawing on the flat anvil, the size of feed plays the very important role to its drawing efficiency.
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