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| 板材多点成形与模具成形过程的比较研究 | |
| 引用本文： | 李淑慧,林忠钦,李明哲,李永宏.板材多点成形与模具成形过程的比较研究[J].锻压技术,2001,26(1):20-24. |
| 作者姓名： | 李淑慧 林忠钦 李明哲 李永宏 |
| 作者单位： | 1. 上海交通大学机械工程学院 2. 吉林工业大学辊锻工艺研究所 3. 长春输油管理处长春维修队 |
| 摘 要： | 利用有限元方法对板材模具成形和多点成形的变形特点进行了分析，并在此基础上就不同成形方法对起皱的抑制作用进行了对比，确定了不同成形方法起皱开始发生时的临界曲率及临界厚向应变。结果表明：多点压机成形方法能够得到比多点模具成形和整体模具成形时变形程度更大且厚度变化更加均匀的制品。 |
| 关 键 词： | 板材成形 数值模拟 起皱 厚度应变 模具成形 多点成形 有限元 |
Comparing between multi-point forming and stamping processes for sheet metal parts |
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| Shanghai Jiaotong University,Li Shuhui\ Lin Zhongqin,Jilin University of Technology,Li Mingzhe,Changchun Oil\|transfer Administration Bureau,Li Yonghong.Comparing between multi-point forming and stamping processes for sheet metal parts[J].Forging & Stamping Technology,2001,26(1):20-24. | |
| Authors: | Shanghai Jiaotong University Li Shuhui\ Lin Zhongqin Jilin University of Technology Li Mingzhe Changchun Oil\|transfer Administration Bureau Li Yonghong |
| Affiliation: | Shanghai Jiaotong University Li Shuhui\ Lin Zhongqin Jilin University of Technology Li Mingzhe Changchun Oil\|transfer Administration Bureau Li Yonghong |
| Abstract: | The deformation characteristics of multi\|point forming and stamping methods for sheet metal parts is analyzed by means of finite element method.And the influence of different forming methods on the wrinkling is compared in detail.The critical curvature and normal strain when the wrinkle is about to appear are evaluated during the MPF and the stamping processes.The great influence of multi\|point press forming method on the improvement of the forming ability and quality is explained further relative to the multi\|point die forming and stamping methods. |
| Keywords: | Sheet metal forming\ Die\ Numerical simulation\ Wrinkling\ Normal strain |
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