Prediction of Critical Blank-Holding Force Criterion to Prevent Wrinkles in Axi-Symmetric Cup Drawing

Hyung Sop Yoon; Sergei Alexandrov; Kwan Soo Chung; Robert E. Dick; T.J. Kang

doi:10.4028/www.scientific.net/MSF.505-507.1273

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HomeMaterials Science ForumMaterials Science Forum Vols. 505-507Prediction of Critical Blank-Holding Force...

Prediction of Critical Blank-Holding Force Criterion to Prevent Wrinkles in Axi-Symmetric Cup Drawing

Abstract:

The repression of wrinkling during sheet metal forming has been a significant issue in recent years. In order to provide a reliable and efficient tool to predict the critical blank holding force to prevent wrinkles, an axi-symmetric analytical model for flange wrinkling is introduced here. Using a conventional theory of the critical condition, the critical blank-holding force and wave numbers are numerically predicted. Comparison between the numerical and experimental results shows excellent agreement for various blank dimensions and materials.

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Periodical:

Materials Science Forum (Volumes 505-507)

Pages:

1273-1278

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.505-507.1273

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Online since:

January 2006

Authors:

Hyung Sop Yoon, Sergei Alexandrov, Kwan Soo Chung, Robert E. Dick, T.J. Kang

Keywords:

Blank Holder Force (BHF), Deep Drawing, Flange Wrinkling

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References

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