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基于 cadcae 拼焊板桶形件 冲压 成形 工艺 设计 含有 CAD 文件

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基于cadcae的拼焊板桶形件冲压成形工艺设计包含有CAD文件,基于,cadcae,拼焊板桶形件,冲压,成形,工艺,设计,含有,CAD,文件

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南京理工大学泰州科技学院毕业设计说明书(论文)作 者:夏正恭学 号：0501510142系部:机械工程系专 业:机械工程及自动化题 目:基于CAD/CAE的拼焊板桶形件冲压成形工艺设计高级工程师张卫 指导者： 评阅者： 2009 年 5 月毕业设计说明书（论文）中文摘要目前拼焊板在汽车工业中得到了广泛的应用，成形性能及工艺参数的过程控制已经成为当今拼焊板冲压的研究热点。本课题选取了简单轴对称零件桶形件作为研究拼焊板拉深成形的对象，首先利用Pro/E对桶形件进行了CAD建模，运用专业的板料冲压模拟软件Dynaform仿真了拼焊板桶形件的冲压成形过程。接着通过分析拼焊板冲压成形过程中的主要影响因素压边圈、压边力、凸模行程、板厚比、焊缝位置、凹模圆角半径，找到一种优化工艺方案，发现阶梯压边圈、压边力为90KN、凸模行程为20mm 、板厚比为1.25、焊缝位于中间位置、凹模圆角为8mm时桶形件成形性能较好，为实际生产提供参考依据。关键词 拼焊板桶形件 有限元分析 拉深毕业设计说明书（论文）外文摘要Title Technical Design of the Tailor-Welded Cup Drawing Based On CAD/CAM AbstractAt present, tailor-welded blank (TWB) has been broadly applied in the auto-industry. The formability and the control of punch process parameters have become the research focus of TWB.As a simple axial symmetry part, a cup is chosen as the beginning of the research of TWB drawing. Firstly, the CAD model of cup TWB was built in Pro/E. The drawing process was simulated via special software-Dynaform. Then, the affecting results of TWB forming factors, such as blank-holder, BHF (blank holder force), punch stroke, thickness ratio, weld-line location, die-fillet radius were simulated. Finally, it was found that the TWBs formability will be improved by step blank-holder, 90KN BHF, 20mm punch stroke, 1.25 thickness ratio, 8mm die-fillet radius with the middle weld-line. It provided assistants for the production in reality.Keywords Tai