Stability of a Suppression Method of Dent and Spring-Back in Zigzag Bending of Sheet Metal/Plate

Takashi Kuboki; Takuma Yamada; Shohei Kajikawa; Hiroyuki Abe

doi:10.4028/www.scientific.net/KEM.716.931

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Stability of a Suppression Method of Dent and Spring-Back in Zigzag Bending of Sheet Metal/Plate
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 716Stability of a Suppression Method of Dent and...

Stability of a Suppression Method of Dent and Spring-Back in Zigzag Bending of Sheet Metal/Plate

Abstract:

This paper focuses upon zigzag-shape bending for suppression of defects, including dent and springback. A series of finite element analyses was carried out in order to optimize the bending condition for suppression of these defects. As a result, it was clarified that a diagonal movement of the upper die was effective for suppression of dents while a rather vertical movement of the upper die was effective for suppression of springback. In order to suppress dent and springback at the same time, this paper proposes another method of bending method, whereby the upper die with special shape moves in a diagonal way. Moreover, the stability of the method against variation of tool dead position, which would be caused by elastic deformation of supporting members, was studied by FEM, followed by experimental verification.

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Periodical:

Key Engineering Materials (Volume 716)

Pages:

931-940

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.716.931

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Online since:

October 2016

Authors:

Takashi Kuboki*, Takuma Yamada, Shohei Kajikawa, Hiroyuki Abe

Keywords:

Bending, Dent, Plate, Sheet Metal, Springback, Zigzag Shape

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References

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