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Convolute Cut-Edge Design with a New Anisotropic Yield Function for Earless Target Cup in a Circular Cup Drawing

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Abstract:

A convolute cut-edge design is performed using FEM (Finite Element Method) for a single step cup drawing operation in order to produce an earless cup profile. Mini-die drawing based on a circular blank shape is initially carried out in order to verify the earing prediction of the Yld2004 anisotropic model (Barlat et al. [1]) for a body stock material. Realistic cup geometry is then employed to design a non-circular convolute edge shape. An iterative procedure based on finite element method is initially used to design a convolute shape for an earless target cup height. A constant strain method is suggested to obtain a new convolute prediction for the next iteration from the current solution. It is proven that Yld2004 model is accurate to predict the anisotropy of the material.

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Periodical:

Materials Science Forum (Volumes 505-507)

Pages:

1297-1302

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.505-507.1297

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Online since:

January 2006

Authors:

Jeong Whan Yoon, Robert E. Dick, Frédéric Barlat

Keywords:

Blank Design, Convolute Cut-Edge, Planar Anisotropy, Yield Function

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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References

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