Contrasting machining technology with punch technology of elastic seat ring, analyzing the error created by punching, introducing the characteristic of punching and the structure of cut and carry die.
对弹性阀座的机械加工工艺和冲压加工工艺进行了对比，并分析了冲压加工所产生的误差，介绍了冲压加工的特点及级进模的结构。
Contrasting machining technology with punch technology of elastic seat ring, analyzing the error created by punching, introducing the characteristic of punching and the structure of cut and carry die.
对弹性阀座的机械加工工艺和冲压加工工艺进行了对比，并分析了冲压加工所产生的误差，介绍了冲压加工的特点及级进模的结构。
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