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对板料多工序综合成形中最常见的带孔拉延进行了变形趋向理论分析,得山了带孔拉延时孔不变形的边界计算数学模型,并对此进行了试验研究。本结果可以供实际生产参考。
Deformation trend analysis of the most common hole drawing in the multi-process sheet metal forming process is summarized. The mathematical model of the boundary deformation without holes in hole drawing is obtained, and the experimental research is carried out. This result can be used for actual production reference.