基于近似板料构形的全工序工具定位方法

杜国康; 陈文亮; 鲍益东

基于近似板料构形的全工序工具定位方法

1.
南京航空航天大学机电学院, 南京 200016

详细信息

作者简介:
杜国康(1986－)，硕士研究生研究方向为板料成形CAE技术，289922075@qq.com;陈文亮(联系人)，教授，博士生导师，cwlme@nuaa.edu.cn

杜国康(1986－)，硕士研究生研究方向为板料成形CAE技术，289922075@qq.com;陈文亮(联系人)，教授，博士生导师，cwlme@nuaa.edu.cn

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- 被引次数: 0
出版历程
- 收稿日期: 2012-12-15
- 刊出日期: 2015-06-10

A Method of Tools' Positioning in the Complete Processes Based on the Approximate Blank Configuration

1.
College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016

摘要

摘要: 进行板料成形的全工序仿真时,常因为工具的错误定位引起板料与工具间的初始穿透,导致求解失败。先将初始板料网格向凹模网格投影,然后采用建立滑动约束面的方法进行网格光顺,能够快速计算后续工序的近似板料构形,基于近似板料构形能够获得理想的工具初始定位。结合求解器的定位功能进行工具定位调整,实现了工具的准确定位,解决了全工序仿真中的初始穿透难题。通过对现代汽车前翼子板的成形进行全工序仿真,验证了本文方法的可行性。
- 板料成形 /
- 仿真 /
- 定位
Abstract: During the complete stamping process simulation of sheet metal forming,initial penetration between sheet metal and tools is frequently caused because of inaccurate positioning for tools which leads to the failure of problem-solving. The initial blank mesh will be projected to die mesh and then be smoothed by mesh smoothing method with sliding constraint surface. It can quickly indicate an approximate configuration of blank in next stage and then an ideal initial positioning for tools can be obtained. With the positioning function of the solver,tools' po-sitioning can be adjusted. In this way,the accurate positioning for tools can be realized and the difficult problem of initial penetration during the complete stamping process is solved. The feasibility of the method in this essay has been proved by complete stamping process simulation of front fender form Hyundai Motor.
- computer simulation /
- high strength steel /
- metal forming

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参考文献(11)

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