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本文通过对球形和锥形零件在接深过程中各部分的应力分析 ,得到了拉深过程中悬空区切向压应力最大值的计算公式 ,以此作为引发内皱的条件 ,在保证工件不被拉裂的前提下 ,建立了临界计算公式 .
In this paper, by calculating the stress of each part of the spherical and conical parts in the process of deep drawing, the formula for calculating the maximum tangential compressive stress of the dangling area during drawing is obtained, which can be used as the triggering condition of internal wrinkles. Under the premise of cracking, a critical formula was established.