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应用科学学报 ›› 2002, Vol. 20 ›› Issue (2): 202-206.

• 论文 • 上一篇    下一篇

金属板材多点柔性成形理论与应用

蔡中义, 李明哲, 严庆光   

  1. 吉林大学辊锻工艺研究所, 吉林长春 130025
  • 收稿日期:2000-12-02 修回日期:2001-07-27 出版日期:2002-06-30 发布日期:2002-06-30
  • 作者简介:蔡中义(1963-),男,吉林扶余人,副教授,博士;李明哲(1951-),男,朝鲜族,吉林图们人,教授,博导.
  • 基金资助:
    教育部跨世纪优秀人才专项基金项目;"十五"国家重点科技攻关项目(2001BA203B11)

The Theory and Application of Multi-point Flexible Forming for Sheet Metal

CAI Zhong-yi, LI Ming-zhe, YAN Qing-guang   

  1. Roll Forging Research Institute, Jilin University, Changchun 130025, China
  • Received:2000-12-02 Revised:2001-07-27 Online:2002-06-30 Published:2002-06-30

PDF

124

被引次数

59

摘要： 多点柔性成形是一种先进的金属板材成形技术,这种成形方法能够实现成形路径选择、分段成形等传统成形方法无法实现的功能.文中基于理想路径成形理论,提出了板材多点柔性成形最优成形路径设计的理论与方法,建立了多点分段成形过渡区设计准则与多点成形过程中静力隐式弹塑性大变形有限元数值模拟方法.应用给出的路径设计理论与方法,计算了典型样件的最优成形路径,应用数值模拟理论、方法及开发的数值模拟软件进行了典型件多点成形过程的数值模拟.

关键词: 成形路径, 分段成形, 数值模拟, 板材成形, 多点成形

Abstract: Multi-point flexible forming (MPF) is an advanced processing technique for sheet metal. In the technique, the functions such as choosing forming path and sectional forming for sheet metal, which can't be realized in traditional method, can be implemented easily. Based on the ideal forming theory, the theory and method to design the optimum forming path for sheet metal in MPF is presented in this paper. The criterion to design the transient area for sectional multi point forming is suggested. The numerical method of elastic plastic large deformation FEM with static implicit scheme for MPF process is established. The optimum forming path of typical 3D-sheet product is calculated by the present method. Using the method and developed software, the MPF process of typical 3D-sheet product is numerically simulated.

Key words: multi-point forming, sheet metal forming, forming path, sectional forming, numerical simulation

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