精密箔垫冲裁成形模设计  

Design of blanking die for precision foil pad

作　　者：李杨 曹立林 薛秀秀 LI Yang;CAO Lilin;XUE Xiuxiu(AECC Xi'an Power Control Technology Co.,Ltd,Xian,Shaanxi 710077,China)

机构地区：[1]中国航发西安动力控制科技有限公司,陕西西安710077

出　　处：《模具工业》2023年第2期24-26,共3页Die & Mould Industry

摘　　要：针对PbSn4.5~2.5精密箔垫冲裁成形后表面存在折、皱、包、点等问题,采用聚氨酯橡胶冲裁模未解决此类零件存在的技术缺陷,对现有技术进行改进,冲裁时增加放置于凸凹模和箔料之间的辅助冲裁垫。生产实践表明,增加辅助冲裁垫后,聚氨酯橡胶模成形的零件表面光洁平整,满足质量要求。In view of the problems of folding,wrinkling,wrapping and spotting on the surface of PbSn4.5~2.5 precision foil pad after blanking forming,the technical defects of such parts were solved by adopting polyurethane rubber blanking die,and the existing technology was improved,an auxiliary blanking pad placed between the punch and concave die and foil was added during blanking.The production practice showed that the surface of the parts formed by polyurethane rubber die was smooth and clean after adding auxiliary blanking pads,which met the quality requirements.

关 键 词：PbSn4.5~2.5箔垫 冲裁成形 聚氨酯橡胶模 辅助冲裁垫 

分 类 号：TG386.49[金属学及工艺—金属压力加工]