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Effect of discrete roller dies on the contour accuracy of profiles in multi-point flexible stretch-bending forming

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Abstract

Flexible stretch-bending of multi-point roller dies technology is a new three-dimensional forming technology for profiles. Compared with the traditional stretch-bending process, the three-dimensional deformation of the profile can be formed at one time, and the cost of the die is greatly reduced and the production efficiency is improved. The die is an important component of flexible stretch-bending of multi-point roller dies equipment. Discrete die is the focus of this paper. The finite element model of flexible stretch-bending of multi-point roller dies is established. Taking T-profile and L-profile as research objects, the effect of die arrangement on strain, shape error, thickness distribution, and springback error is studied. The non-contact area between profile and die is one of the important factors that affect the 3D deformation of profile. By comparing the numerical simulation results with the experimental results, the effect of the non-contact area length on the three-dimensional deformation of profile is analyzed. The results show that with the increase of the non-contact area length, the shape error of profile increases, the thickness of profile web becomes thinner more seriously, and the springback error of profile increases after unloading.

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Data availability

The datasets used or analysed during the current study are available from the corresponding author on reasonable request.

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Funding

This work was financially supported by the Project of Jilin Provincial Scientific and Technological Department (20190302037GX, 20190201110JC); the China Postdoctoral Science Foundation (2017 M611321); the Project of Jilin Province Development and Reform Commission (2019C046-2).

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Authors and Affiliations

  1. Key Laboratory of Automobile Materials, Ministry of Education, and College of Materials Science and Engineering, Jilin University, Changchun, 130025, Jilin, China

    Chuandong Chen, Jicai Liang, Yi Li & Ce Liang

  2. Roll Forging Research Institute, Jilin University, Changchun, 130025, Jilin, China

    Chuandong Chen

Authors
  1. Chuandong Chen
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  2. Jicai Liang
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  3. Yi Li
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  4. Ce Liang
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Contributions

Chuandong Chen and Jicai Liang developed the idea of the study, Chuandong Chen and Ce Liang participated in its design and coordination and helped to draft the manuscript. Chuandong Chen and Yi Li contributed to the acquisition and interpretation of data. Ce Liang provided critical review and substantially revised the manuscript. All authors read and approved the final manuscript.

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Correspondence to Yi Li or Ce Liang.

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Chen, C., Liang, J., Li, Y. et al. Effect of discrete roller dies on the contour accuracy of profiles in multi-point flexible stretch-bending forming. Int J Adv Manuf Technol 113, 1959–1971 (2021). https://doi.org/10.1007/s00170-021-06727-x

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  • DOI: https://doi.org/10.1007/s00170-021-06727-x

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