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本文从对水箱端盖几种冲压工艺方案的比较与分析,以“弱区必然先变形、变形区应为弱区”这一冲压成形中变形趋向性及其控制的理论为指导,探讨了双侧壁带法兰浅拉深件的合理冲压工艺;并导出了毛坯尺寸计算公式;简介了在生产实际中得到验证的水箱端盖落料冲孔拉深复合模。
Based on the comparison and analysis of several stamping schemes for the tank end cap, this paper is guided by the theory of deformation trend and its control in the stamping of “the weak zone must be deformed first and the deformed zone should be the weak zone” The reasonable stamping process of the shallow flange with flange is carried out on the side wall. The formula for calculating the size of the blank is deduced. The composite die of the end cap blanking and punching and drawing is verified in the actual production.