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介绍了使用专用工具在金属母管上生成Ｔ形支管凸缘的新工艺，给出了支管凸缘成形工艺参数和壁厚最大减薄率的计算公式。其计算结果与试验结果基本相符。
A new technique for producing T - shaped branch flanges on metal busbars using special tools is introduced. The formulas for calculating the forming process parameters and the maximum wall - thinning ratio of branch flanges are given. The calculated results are in good agreement with the experimental results.