在电器行业的金属零件中,经常可遇到用翻这方式成形螺纹孔这一节约金属材料、减轻零件重量的先进冲压工艺。而在一般冲模设计资料中对螺孔翻边的介绍甚少,因此对模具设计人员,特别是对模具设计经验不多的同志常感资料不足。我们根据多年来的实践,总结了一些这方面的经验,现介绍如下,供同志们参考。 In the electrical industry, metal parts, often encountered this way to form a threaded hole to save the metal material, reduce the weight of parts advanced stamping process. In the general information on the design of the screw hole flanging little introduction, so the mold designers, especially the lack of experience in mold design comrades often feel inadequate information. Based on years of practice, we have summarized some experiences in this respect and are introduced below for reference by our comrades.