A novel springback compensation method based on finite element analysis and springback mechanics

Naoyuki Doke, Tetsuo Oya

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

There are various springback compensation methods, such as the Displacement Adjustment (DA) Method and the Force Descriptor Method (FDM). However, neither method is based on the springback mechanical equation, even though the cause of springback is the resultant stress including the bending moment at the end of the forming process. Therefore, in our proposed method, the resultant stress before springback is designed by users so that the metal sheet is deformed into the desired shape after springback. In this paper, Vbending is focused on as the target of compensation and the proposed springback compensation method for V-bending is introduced. We then verify effectiveness of the proposed method, which is compared with DA method. It was found that accurately compensated shapes that are deformed into the desired shapes could be obtained. Through the verification, it was found that the proposed method has some merits. First, not only the curvature but also other working parameters such as the punch load can be considered in the design process. Second, it is possible to achieve a convergence rate higher than that of DA method. Third, the lower frequency of forming analysis reduces the computation time.

Original languageEnglish
Title of host publicationProceedings of the 14th International Conference on Metal Forming, METAL FORMING 2012
PublisherWiley-VCH Verlag
Pages335-338
Number of pages4
VolumeSPL. ISSUE
ISBN (Print)9783514007970
Publication statusPublished - 2012 Jan 1
Event14th International Conference on Metal Forming, METAL FORMING 2012 - Krakow, Poland
Duration: 2012 Sep 162012 Sep 19

Other

Other14th International Conference on Metal Forming, METAL FORMING 2012
CountryPoland
CityKrakow
Period12/9/1612/9/19

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Keywords

  • Bending moment
  • Curvature
  • Metal sheet forming
  • Resultant stress
  • Springback compensation
  • V-bending

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

Cite this

Doke, N., & Oya, T. (2012). A novel springback compensation method based on finite element analysis and springback mechanics. In Proceedings of the 14th International Conference on Metal Forming, METAL FORMING 2012 (Vol. SPL. ISSUE, pp. 335-338). Wiley-VCH Verlag.