某轿车引擎盖外板拉深模具设计及成形模拟毕业论文目录.doc

重庆理工大学毕业论文 _ 某轿车引擎盖外板拉深模具设计及成形模拟分析 目 录摘要 I绪论II汽车覆盖件的成形特点721 冲压件的工艺设计31.1零件总体分析31.2零件材料的选择31.3冲压方向的选择41.4 工艺补充部分的设计61.6拉延筋的设计192 拉深件成型工艺CAE分析103 拉深模结构与零件设计123.2拉深模材料的选择133.3冲压设备的选择133.3.1拉深力的计算133.3.2压料力的计算133.3.3冲压设备的选择143.4模具操作143.5 凹模结构153.6凸模结构173.8导向部分213.9起吊装置21 3.10拉深模的结构和原理说明214 总 结23致 谢23参考文献24文献综述25 重庆理工大学毕业论文 _ 某轿车引擎盖外板拉深模具设计及成形模拟分析 摘 要 通过对某轿车车身覆盖件的引擎盖外板拉深模具型面的设计,介绍了复杂型面拉深件拉深模具型面的设计流程,研究了复杂型面拉深件拉深模具型面的造型设计方法和原则。利用板料成形分析有限元软件Dynaform对引擎盖外板的拉深成形过程进行仿真模拟,探讨了仿真过程中出现的质量缺陷(如破裂、起皱、变形不足等)的原因,并针对这些现象对拉深模具型面进行优化设计改进。并根据仿真模拟结果,制造加工了合格的拉深件模具。对于复杂型面拉深件的拉深模具的设计和制造具有一定的指导意义。关键词：车身覆盖件;冲压成形；模具；优化设计； IIAbstract The designing process of drawing die for complex surface drawing part in designing the drawing model of the automotive hood outer panel surface and the design method and principle were studied.The stamping process using the sheet metal forming analysis software Dynaform was simulated. The reason causing quality defect in simulation, such as cracking and wrinkle etc., was investigated. Based on these reasons, the design of drawing die surface for automobile hood outer panel was optimized. According to the simulated results, the qualified drawing die was made, which had a instructing meaning for the design and manufacture of drawing die for complex surface