通过国内外冲模制造工艺的对比与分析，研讨提高冲模寿命的措施。

This paper compares and analyzes the manufacturing technology of punch at home and abroad, then the measures for increasing the die life is studied.

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通过模具热处理变形的原因分析，提高有关预防措施，以提高冲模寿命。

The cause of deformation of punch die from heat treatment process is analyzed, and the preventive measures against deformation are proposed in order to prolong the life period of punch die.

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通过进一步优化相关工艺参数，其结果为提高冲模寿命和冲压件质量提供了依据。

Optimization of the related technology parameters has offered the principle to increase the service life of the die and the product quality.

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