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New process of multi-point forming with individually controlled force-displacement and mechanism of inhibiting springback

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Abstract

In this paper, a new process of multi-point forming with individually controlled force-displacement (MPF-ICFD) is presented to reduce the springback in the traditional multi-point forming (MPF). An experimental setup was designed and manufactured, and the contrast experiment was conducted to investigate the differences between the traditional MPF and the proposed MPF-ICFD. Furthermore, the stress state and springback mechanism in both processes were analyzed with the plastic forming theory. The differences in springback were also investigated with 1060 aluminum alloy and Q 295 steel. The results showed that the specimens in MPF-ICFD presented an excellent deformation uniformity and are consistent with the target profile. The springback magnitude of 1060 aluminum alloy is 34.63% in MPF while 7.51% in MPF-ICFD, and the springback magnitude of Q 295 steel is 31.16% in MPF while 17.02% in MPF-ICFD. The results demonstrate that the springback can be strongly inhibited by MPF-ICFD.

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Authors and Affiliations

  1. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China

    Bin-bin Jia

  2. School of Materials Science and Engineering, Harbin Institute of Technology at Weihai, Weihai, 264209, China

    Bin-bin Jia & Wei-Wei Wang

Authors
  1. Bin-bin Jia
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  2. Wei-Wei Wang
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Correspondence to Bin-bin Jia.

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Jia, Bb., Wang, WW. New process of multi-point forming with individually controlled force-displacement and mechanism of inhibiting springback. Int J Adv Manuf Technol 90, 3801–3810 (2017). https://doi.org/10.1007/s00170-016-9709-7

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  • DOI: https://doi.org/10.1007/s00170-016-9709-7

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