Journal of South China University of Technology (Natural Science Edition) ›› 2017, Vol. 45 ›› Issue (9): 142-146.doi: 10.3969/j.issn.1000-565X.2017.09.020

• Materials Science & Technology • Previous Articles    

Adjusting Method of Multi-Point Flexible Stretch-Bending Forming Die Head of Profiles

LIANG Ce1,2 ZHAO Hong-wei3 LI Yi1,2 LIANG Ji-cai1,4   

  1. 1.Key Laboratory of Automobile Materials of the Ministry of Education,Jilin University,Changchun 130022,Jilin,China; 2.School of Materials Science and Engineering,Jilin University,Changchun 130022,Jilin,China; 3.School of Mechanical Science and Engineering,Jilin University,Changchun 130022,Jilin,China; 4.Roll Forging Institute,Jilin University,Changchun 130022,Jilin,China
  • Received:2016-12-14 Revised:2017-04-07 Online:2017-09-25 Published:2017-08-30
  • Contact: 李义( 1974-) ，男，博士，教授，主要从事材料加工研究． E-mail:henrylee@jlu.edu.cn
  • About author:梁策( 1987-) ，女，博士，讲师，主要从事材料加工研究． E-mail: liangce@ jlu． edu． cn
  • Supported by:
    Supported by the National Natural Science Foundation of China( 51675225) and the Development and Reform Commission Item of Jilin Province( 2016C036)

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Abstract: In order to increase the manufacturing accuracy of the multi-point flexible three-dimensional stretch-bending forming parts of profiles and to determine die-head adjusting parameters quickly and precisely,the intersection of the horizontal axis and the vertical axis in the die unit is defined as the shape-controlling point during the multipoint die rotation forming process according to the geometric relationship between the die head and the profile forming shape.Meanwhile,the curve composited by the shape controlling points in the horizontal direction is defined as the horizontal shape-adjusting line.Then,the relationship between the shape-controlling points in the vertical direction and the adjusting curve of the forming parts is further investigated,and the calculation formulas of the deformation parameters for the die-head shape-adjusting forming process are derived.This method simplifies the adjusting process,and it is of broad applicability.

Key words: profile, multi-points, flexibility, three-dimension stretch-bending forming, shape adjusting process

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