• CN:11-2187/TH
  • ISSN:0577-6686

›› 2000, Vol. 36 ›› Issue (1): 50-54.

• 论文 • 上一篇    下一篇

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板材多点反复成形的残余应力分析

李明哲;蔡中义;刘纯国   

  1. 吉林工业大学辊锻研究所
  • 发布日期:2000-01-15

ANALYSIS OF RESIDUAL STRESSES IN ALTERNATE MULTIPOINT FORMING OF SHEET METAL

Li Mingzhe;Cai Zhongyi;Liu Chunguo   

  1. Jilin University of Technology
  • Published:2000-01-15

摘要: 基于对曲板弹塑性弯曲的理论分析,提出了适于板条反复成形应力分析的近似方法,给出了残余应力的计算公式,并对板条反复纯弯曲变形过程的残余应力进行了分析。结果表明,适当选择反复成形的加载路径,可使残余应力明显降低。

关键词: 板材多点成形, 残余应力, 弹塑性弯曲, 反复成形

Abstract: An approximate method suitable for the stresses analysis in sheet metal alternate forming is presented, based on elastic plastic bending theory of cure plate. The formulations to calculate residual stresses is given and the residual stresses in alternate pure bedding of plate strip is analyzed by the presented method. The result shows that if the loading path is chosen properly, the residual stresses will be reduced obviously.

Key words: Alternate forming, Elastic plastic bending, Multi-point forming, Residual stresses

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