汽车侧围外板冲压缺陷的数值模拟及改进措施  

Numerical simulation and improvement measures on stamping defects for automobile side-frame outer panel

作　　者：任闯 潘远安 苏传义 肖冰[2] 高文嫱 Ren Chuang;Pan Yuan'an;Su Chuanyi;Xiao Bing;Gao Wenqiang(China FAW Group Co.,Ltd.,Changchun 130011,China;School of Mechanical Engineering,Changchun Automobile Industry Institute,Changchun 130013,China)

机构地区：[1]中国第一汽车集团有限公司,吉林长春130011 [2]长春汽车工业高等专科学校机械工程学院,吉林长春130013

出　　处：《锻压技术》2022年第5期103-109,共7页Forging & Stamping Technology

基　　金：吉林省高等教育学会课题(JGJX2021D680、JGJX2021D685)。

摘　　要：为了提升汽车侧围外板的表面质量,寻求解决侧围外板尾灯翻边圆角棱线波浪的方案,结合理论分析、工艺分析及生产经验,利用AutoForm分析软件完成数值模拟,还原制件缺陷产生过程,并首次引入压强参数来判定缺陷。在制定过渡区整改方案后,再次应用数值模拟仿真手段对比分析方案优劣并择优对模具进行整改。结果表明:通过压强参数判定制件贴合模具状态,可更清晰判定缺陷产生的阈值问题;修改翻边过渡区,可解决侧围外板尾灯翻边圆角棱线波浪的问题,并节约修磨成本2元/辆,车型周期内共计节约103万元,为汽车行业冲压外覆盖件的质量提升提供参考。In order to improve the surface quality of automobile side-frame outer panel,a solution to the ridgeline wave at the flanging fillet for taillight of side-frame outer panel was sought.Then,combined with theoretical analysis,process analysis and production experience,the numerical simulation was conducted by analysis software AutoForm to restore the defect generation process of parts,and the pressure parameter was introduced for the first time to determine the defect.After the rectification schemes of the transition zone was formulated,the numerical simulation method was used again to compare and analysis the advantages and disadvantages of the scheme,and the mold according to the best one was rectified.The results show that the threshold problem caused by the defect can be more clearly determined by the pressure parameter to determine the fitting die state of the part.Modifying the flanging transition zone can solve the problem of ridgeline wave at the flanging fillet for taillight of side-frame outer panel and save the grinding cost of 2 yuan per vehicle.Thus,a total saving in the model cycle is 1.03 million yuan,which provides reference for the quality improvement of stamping outer cover panels in the automotive industry.

关 键 词：侧围外板 尾灯 压强参数 表面质量 冲压缺陷 

分 类 号：TG386[金属学及工艺—金属压力加工]