在交叉支撑装置中的另一个重要零件——锁紧板的制造工艺中，采用了冲头保护装置，解决了失稳折断问题。
In the manufacturing of the lock plate as an important part placed in the crossing support device, we solved the problem of die breaking by using of stroke protecting device.
所有模具零件，冲头，模板在外观上相似的地方需要用技术的方法来证实没有用错材料。
All sections, punches, and buttons that are similar in appearance are to have mistake proofing techniques used.
一种冲头、用于在中空零件中形成相对的孔的设备和方法以及由此形成的零件。
A punch, apparatus and method for forming opposing holes in a hollow part, and a part formed therefrom.
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