侧围裙边梁烘烤变形原因分析及防止再发方案  

Analysis on baked deformation of side wall skirt rail and the method of prevention of recurrence

作　　者：高满银 GAO Man-yin(Biotechnology Center of Beijing Automobile Co.,Ltd.,Beijing 101300,China)

机构地区：[1]北京汽车股份有限公司生技中心,北京101300

出　　处：《模具工业》2020年第12期57-63,共7页Die & Mould Industry

摘　　要：白车身进入涂装车间,经过电泳工序后要进行烘烤,白车身在烘烤时产生热膨胀,热膨胀会导致白车身局部承受较大的应力,使白车身产生不同程度的变形,如果变形量超出弹性变形范围,达到塑性变形的程度,在白车身冷却后,此变形不可恢复到初始状态,造成永久破坏。此类问题原因复杂,解决难度大,以某车型侧围裙边烘烤变形为例,以基础力学、材料力学为理论依据对车身电泳后烘烤受热过程中钣金发生变形的问题进行分析,并通过对标数据分析的方法制定类似问题防止再发生的方案。Taking the baking deformation of the side wall skirt rail of a car as an example,the deformation of sheet metal in the process of baking and heating after the electrophoresis process was analyzed based on the basic mechanics and material mechanics.The method to prevent the similar problems through comparative data analysis was formulated.

关 键 词：涂装 烘烤 侧围 裙边梁 变形 压杆失稳 

分 类 号：TG386[金属学及工艺—金属压力加工]