轿车顶盖刚性不足问题的探讨及解决方案  

Discussion and solution on insufficient rigidity problem of car roof

作　　者：方卫国[1] 李健平[1] 范光林[1] 

机构地区：[1]奇瑞汽车股份有限公司规划设计一院工艺技术部,安徽芜湖241009

出　　处：《模具技术》2013年第6期31-35,47,共6页Die and Mould Technology

摘　　要：针对轿车顶盖实际生产中容易出现刚性不足、内凹陷、开裂、起皱等质量缺陷,运用冲压成形CAE软件Autoform对顶盖冲压工艺进行了仿真分析,对拉深模面进行了优化设计。试制结果表明,上述问题得到了解决,同时保证了尺寸精度和外观质量,减少了后期模具及夹具调试时间,大大地降低了生产成本。Aimed at quality problems easily occurred in car roof production like insufficient rigidity, inner hollow, cracking and wrinkling, roof forming process was simulated and ana- lyzed with Autoform CAE software and drawing die face was optimized. The test result shows that problems above could be solved and size precision and appearance quality can be ensured. Later die and fixture debugging time has been reduced, in which greatly reduce the production cost.

关 键 词：模面设计 圆角 拔模角 过拉深 

分 类 号：TG386[金属学及工艺—金属压力加工]