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Research on springback compensation method of 3D flexible stretch bending of multi-point roller dies

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Abstract

Springback compensation is considered as the best method to reduce springback error. In view of the springback defect of 3D deformed workpiece, a springback compensation method based on variable compensation factor is proposed. This method can accelerate the convergence speed of iterative compensation. In this paper, the 3D flexible stretch bending of multi-point roller die technology (3D FSB-MPRD) is introduced firstly, and then, the principle of the springback compensation method based on variable compensation factor is explained. In order to improve the springback compensation accuracy of workpiece, the total springback compensation process is divided into horizontal bending springback compensation and vertical bending springback compensation. Taking the T-shaped profile with variable curvature as the research object, the die surface is optimized and the optimal springback compensation factor is obtained by using numerical simulation after multiple iterations. Finally, the results of springback compensation are compared with the desired shape. And the effectiveness of the springback compensation method based on variable compensation factor is verified by comparing the simulation results with the test results.

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Funding

This work was financially supported by the Project of Jilin Provincial Scientific and Technological Department (20190302037GX, 20190201110JC), Project of Jilin Provincial Development and Reform Commission (2019C046-2), and the Project of Education Department of Jilin Province (JJKH20180943KL).

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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 & Jicai Liang

  3. School of Mechanical and Vehicular Engineering, Changchun University, Changchun, 130000, Jilin, China

    Fei Teng

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  1. Chuandong Chen
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  2. Jicai Liang
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  3. Fei Teng
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  4. Yi Li
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  5. Ce Liang
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Correspondence to Yi Li or Ce Liang.

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Chen, C., Liang, J., Teng, F. et al. Research on springback compensation method of 3D flexible stretch bending of multi-point roller dies. Int J Adv Manuf Technol 112, 563–575 (2021). https://doi.org/10.1007/s00170-020-06326-2

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  • DOI: https://doi.org/10.1007/s00170-020-06326-2

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