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Position deviation and springback in V-die bending process with asymmetric dies

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Abstract

Novel finite element analyses and a series of experiments are performed to characterize high strength steel sheet metal parts fabricated by asymmetric V-die bending dies. The proposed strategy uses a finite element analysis of elasticity–plasticity to simulate asymmetric V-die bending process and to test its viability for friction contact processes. Accordingly, a series of experiments obtained good agreement with the numerical simulation. The effects of process parameters (e.g., lubrication (contact friction), material properties, and process geometries) on deviation in the bending point were experimentally tested to identify the main parameters of position deviation in sheet metal bending processes. Moreover, effects of springback phenomenon on bending defects and on the precision of an asymmetric bent component are discussed. The results of this study can be considered when developing process design guidelines for asymmetric processes in high strength steel sheets.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Taipei Chengshih University of Science and Technology, No. 2, Xueyuan Road, Beitou, Taipei, Taiwan, 112, Republic of China

    Daw-Kwei Leu

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  1. Daw-Kwei Leu
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Correspondence to Daw-Kwei Leu.

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Leu, DK. Position deviation and springback in V-die bending process with asymmetric dies. Int J Adv Manuf Technol 79, 1095–1108 (2015). https://doi.org/10.1007/s00170-014-6532-x

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  • DOI: https://doi.org/10.1007/s00170-014-6532-x

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