后门外板门把手凹坑问题解决方案

Solution of pit on doorknob of rear door outer plate

通过介绍后门外板门把手的造型结构和后门外板成形工艺,分析车门把手凹坑产生机理,结合软件分析验证整改方案,提升整改方案有效性,调试过程中采用分次拉深闭合的方式确认门把手表面质量,通过门把手局部浅拉深和后工序整形的方法提高车门把手成形质量,为车门外板整改提供借鉴经验。

By introducing the model structure of the doorknob of rear door outer plate and its forming process, the producing mechanism of doorknob pit was analyzed. Combined with the software analysis to verify the improvement scheme to improve the effectiveness. The doorknob surface quality was confirmed by using the method of batch drawing in the process of debugging. Finally,the doorknob surface quality was improved by using the method of local shallow drawing and sizing, so as to accumulate reference experience for the rectification of the rear door outer plate.