基于焊装工艺的分片式后尾门外板电泳流痕解决方案  

Solution for Electrophoresis Flow Defect of Split Rear Tail Door Outer Panel Based on Welding Process

作　　者：储祥伟 石鹏程 周烁宇 徐蓓芬 唐磊 CHU Xiangwei;SHI Pengcheng;ZHOU Shuoyu;XU Beifen;TANG Lei(SAIC General Motors Company Limited,Shanghai 201201,China)

机构地区：[1]上汽通用汽车有限公司,上海201201

出　　处：《汽车实用技术》2024年第3期105-108,共4页Automobile Applied Technology

摘　　要：汽车白车身(BIW)电泳二次流痕问题是汽车涂装车间由来已久的问题,各大主机厂的涂装工艺工程师尝试了多种方案,也取得了一定成效。文章基于焊装工艺探索降低电泳流痕的方案,从数模结构上分析了电泳留痕的原因,提出了用车身胶堵住电泳流痕的方案,最后跟踪一年量产车的电泳流痕状态,得出结论,在优化油漆工艺的基础上,通过增加车身胶能显著降低电泳二次流痕问题。Second electrophoresis flow defect in body in white(BIW)is a long-standing problem in automobile painting plants.Engineers from major automobile manufacturers have tried various solutions and achieved some success.This article explores the reduction of electrophoretic flow marks based on welding technology.It analyzes the causes of electrophoretic flow marks from a numerical model structure perspective and proposes a solution of using body adhesive to seal the electrophoretic flow marks.Finally,the electrophoretic flow marks status of mass-produced cars is tracked for one year,and the conclusion is drawn that by optimizing the paint process and increasing the use of body adhesive,the problem of secondary flow marks in electrophoretic coating can be significantly reduced.

关 键 词：焊装工艺 分片式后尾门外板 电泳二次流痕 油漆工艺 

分 类 号：U466[机械工程—车辆工程]