| 汽车外覆盖件回弹评价方法及应用 |
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| 引用本文： | 龚志辉,钟志华,杨旭静.汽车外覆盖件回弹评价方法及应用[J].汽车工程,2007,29(4):351-354. |
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| 作者姓名： | 龚志辉 钟志华 杨旭静 |
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| 作者单位： | 湖南大学,汽车车身先进设计制造国家重点实验室,长沙,410082 |
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| 摘 要： | 考虑到切边线在汽车外覆盖件上的特殊意义,提出用切边线的变形来评价真实冲压件的回弹;根据弹性变形的特点,利用强制变形方法计算出回弹前后模型结点拓扑关系,从而实现了回弹的精确评价,并将该方法运用到了模具的修整和切边线的预判断。
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| 关 键 词： | 汽车外覆盖件 回弹 评价方法 切边线 |
| 修稿时间： | 2006-04-192006-06-26 |
The Evaluation of Springback for Autobody Panels and its Application |
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| Gong Zhihui,Zhong Zhihua,Yang Xujing.The Evaluation of Springback for Autobody Panels and its Application[J].Automotive Engineering,2007,29(4):351-354. |
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| Authors: | Gong Zhihui Zhong Zhihua Yang Xujing |
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| Institution: | Hunan University, State Key Laboratory of Advanced Design and Manufacture for Vehicle Body, Changsha 410082 |
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| Abstract: | A scheme is put forward that uses the deformation of trimming line to evaluate the springback of real stamping parts.Based on the feature of elastic deformation and by means of enforced deformation,the topological relationship of the nodes in the model before and after springback is calculated,and thus the accurate evaluation of springback is realized.The method can also be applied to die repair and predetermination of trimming line. |
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| Keywords: | Autobody panels Springback Evaluation method Trimming line |
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