Improving effect on forming quality and accuracy using a polyurethane board positioning/resetting the discrete steel pad in multi-point forming

  • Er-hu Qu
  • Ming-zhe LiEmail author
  • Rui Li


To improve the quality of multi-point die forming, a new approach using discrete steel pads was proposed. The formability of three different multi-point die forming processes was analyzed through numerical simulation and experiments. Numerical simulation and experimental results showed that the use of discrete steel pads in the multi-point forming process can substantially improve the stress-strain state on the plate and suppress dimple, straight-edge, and wrinkle defects. This analysis verified that the use of discrete steel pads in a multi-point forming process can effectively improve the quality and accuracy with which sheet metal is formed.


multi-point forming dimple wrinkle numerical simulation forming accuracy 


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© University of Science and Technology Beijing and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.College of Materials Science and EngineeringJilin UniversityChangchunChina
  2. 2.Roll Forging InstituteJilin UniversityChangchunChina
  3. 3.Changchun Ruiguang Technology Co., Ltd.ChangchunChina

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