| 压边圈应力传递规律及其对冲压成形的影响 |
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| 引用本文： | 李淑慧,赵亦希,刘林虎,林忠钦. 压边圈应力传递规律及其对冲压成形的影响[J]. 上海交通大学学报, 2006, 40(10): 1645-1648 |
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| 作者姓名： | 李淑慧 赵亦希 刘林虎 林忠钦 |
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| 作者单位： | 机械与动力工程学院,上海交通大学,上海,200030;振动、冲击与噪声国家重点实验室,上海交通大学,上海,200030;机械与动力工程学院,上海交通大学,上海,200030 |
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| 摘 要： | 利用弹性实体单元有限元模型研究了压边圈厚度对压边应力传递的影响规律,并与实验结果进行了对比分析.在此基础上,分析了不同厚度及结构的压边圈对钢板成形性能的影响规律.结果表明,使用弹性实体单元模型可以准确预测压边圈应力传递,从而提高冲压成形数值模拟精度;相对于平板结构的压边圈,锥台结构压边圈更有利于变压边力的实现,并改善钢板成形性能.
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| 关 键 词： | 弹性压边圈 数值模拟 成形性 压边力 |
| 文章编号： | 1006-2467(2006)10-1645-04 |
| 修稿时间： | 2005-09-08 |
The Stress Transfer of Blank Holder and Its Effect on Sheet Formability |
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| LI Shu-hui,ZHAO Yi-xi,LIU Lin-hu,LIN Zhong-qin. The Stress Transfer of Blank Holder and Its Effect on Sheet Formability[J]. Journal of Shanghai Jiaotong University, 2006, 40(10): 1645-1648 |
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| Authors: | LI Shu-hui ZHAO Yi-xi LIU Lin-hu LIN Zhong-qin |
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| Abstract: | The effect of blank holder thickness on stress transfer was studied by means of an elastic solid element finite element model.The simulation results were verified by experiments.The effect of the structure and thickness of the blank holder on the sheet formability was analyzed.The results show that the(elastic) solid elements model is efficient to improve the simulation accuracy of the stress transfer on blank holder and therefore improves the stamping formability prediction accuracy.The cone-shaped blank holder is beneficial to the variable blank holder force control and stamping formability improvement. |
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| Keywords: | elastic blank holder numerical simulation formability blank holder force |
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