| 板材无压边多点成形中起皱的数值模拟 |
| |
| 引用本文： | 陈喜娣,蔡中义,李明哲,隋振.板材无压边多点成形中起皱的数值模拟[J].农业机械学报,2005,36(4):132-135. |
| |
| 作者姓名： | 陈喜娣 蔡中义 李明哲 隋振 |
| |
| 作者单位： | 吉林大学辊锻工艺研究所 |
| |
| 基金项目： | 国家自然科学基金资助项目 (项目编号 :5 0 2 75 0 63 ) |
| |
| 摘 要： | 在多点成形中，变形量不大的三维曲面零件通常采用无压边的方式成形。起皱是无压边成形中决定零件能否成形的重要因素。采用显式算法对不同板厚、不同变形程度以及不同材质的球面、马鞍面的无压边多点成形过程进行数值模拟，得出了起皱的分布和不起皱极限图，这些结果对多点成形技术的工程应用具有一定的参考价值。
|
| 关 键 词： | 数值模拟 多点成形 起皱 压边 板材 曲面零件 显式算法 变形程度 成形过程 参考价值 成形技术 变形量 马鞍面 极限图 板厚 材质 |
| 修稿时间： | 2003年8月19日 |
Numerical Simulation of Wrinkling in Multi-point Forming for Sheet Metal without Blank Holder |
| |
| Chen Xidi,Cai Zhongyi,Li Mingzhe,Sui Zhen.Numerical Simulation of Wrinkling in Multi-point Forming for Sheet Metal without Blank Holder[J].Transactions of the Chinese Society of Agricultural Machinery,2005,36(4):132-135. |
| |
| Authors: | Chen Xidi Cai Zhongyi Li Mingzhe Sui Zhen |
| |
| Institution: | Jilin University |
| |
| Abstract: | In multi-point forming (MPF), three-dimension surface parts with small deformation are usually formed in a mode without blank holder. In such mode, wrinkling is a key factor to determine whether the part could be formed. Based on explicit algorithm, the MPF processes of spherical and saddle surface parts of different materials with different thickness and deformations were simulated in this paper, and wrinkle distribution and non-wrinkling limits for spherical and saddle surface parts were obtained. These results provided significant guidance to the engineering application of MPF technique. |
| |
| Keywords: | Sheet metal Multi-point forming Wrinkling Explicit algorithm |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
