| 板材多点成形使用弹性垫后回弹的数值模拟 |
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| 引用本文： | 杨建鸣,郝洁,任振中.板材多点成形使用弹性垫后回弹的数值模拟[J].制造技术与机床,2011(9). |
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| 作者姓名： | 杨建鸣 郝洁 任振中 |
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| 作者单位： | 内蒙古科技大学机械工程学院; |
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| 摘 要： | 利用有限元软件LS-DYNA对板材冲压成形的回弹进行数值模拟。使用3mm厚的弹性垫抑制板材成形产生的压痕,但弹性垫的使用加上板材的回弹会导致成形误差的增大。基于数值模拟的结果,提出了修正基本体群成形面补偿回弹。经过两次补偿,精度得到了很好的提高,证明该方法可以很好地补偿多点成形中的回弹。
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| 关 键 词： | 多点成形 LS-DYNA 弹性垫 回弹 |
Numerical simulation of springback of the multi-point forming for plank after using elastic cushion |
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| YANG Jianming,HAO Jie,REN Zhenzhong.Numerical simulation of springback of the multi-point forming for plank after using elastic cushion[J].Manufacturing Technology & Machine Tool,2011(9). |
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| Authors: | YANG Jianming HAO Jie REN Zhenzhong |
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| Affiliation: | YANG Jianming,HAO Jie,REN Zhenzhong(Inner Mongolia University of Science and Technology,Baotou 014010,CHN) |
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| Abstract: | In this paper, finite element software LS-DYNA was used to simulate plate stamping springback. 3 mm thick elastic cushion inhibitted dimple of sheet forming, but the use of elastic cushion and plate springback would lead to shape error. A method was proposed which modified the forming surface of element group in the Multi-point forming(MPF) by iterative ways according to the numerical simulation results. The accuracy of forming was improved after two compensation, it was proved that this method can compensa... |
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| Keywords: | Multi-point Forming LS-DYNA Elastic Cushion Springback |
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