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分析了反挤凸模的失效规律,改进了反挤凸模的结构和工艺,使反挤凸模的使用寿命提高了2倍。
The failure law of the anti-extrusion punch is analyzed, the structure and technology of the anti-extrusion punch are improved, and the service life of the anti-extrusion punch is increased by 2 times.