Strength checking formula for blanking punch in current documents have been reviewed and the anti-bending ability of blanking punch is discussed.

查阅和分析现有文献中给出的冲裁凸模强度校核公式，针对凸模抗压弯能力的强度校核问题进行了讨论。

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Using programming way to operate the user-defined features, a module for the structural design of blanking punch based on user-defined feature was developed.

使用编程的方式对用户自定义特征进行调用，从而开发出基于用户自定义特征的冲裁凸模结构设计模块。

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Blanking punch contents is a derivative sales, and guarantee the workpiece and the shape of the holes in the relative position accurately, improve processing accuracy.

落料凸模内装有导正销，保证了工件上孔和外形的相对位置准确，提高了加工精度。

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