Convolute Cut-Edge Design with a New Anisotropic Yield Function for Earless Target Cup in a Circular Cup Drawing |
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| Journal | Materials Science Forum (Volumes 505 - 507) |
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| Volume | Progress on Advanced Manufacture for Micro/Nano Technology 2005 |
| Edited by | Wunyuh Jywe, Chieh-Li Chen, Kuang-Chao Fan, R.F. Fung, S.G. Hanson,Wen-Hsiang Hsieh, Chaug-Liang Hsu, You-Min Huang, Yunn-Lin Hwang, Gerd Jäger, Y.R. Jeng, Wenlung Li, Yunn-Shiuan Liao, Chien-Chang Lin, Zong-Ching Lin, Cheng-Kuo Sung and Ching-Huan Tzeng |
| Pages | 1297-1302 |
| DOI | 10.4028/www.scientific.net/MSF.505-507.1297 |
| Citation | Jeong Whan Yoon et al., 2006, Materials Science Forum, 505-507, 1297 |
| Online since | January, 2006 |
| Authors | Jeong Whan Yoon, Robert E. Dick, Frédéric Barlat |
| Keywords | Blank Design, Convolute Cut-Edge, Planar Anisotropy, Yield Function |
| 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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