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http://dx.doi.org/10.3795/KSME-A.2010.34.5.549

Numerical Study on Effect of Using Elastic Pads in Flexible Forming Process  

Heo, Seong-Chan (Dept. of Aerospace Engineering, Pusan Nat'l Univ.)
Seo, Young-Ho (Dept. of Aerospace Engineering, Pusan Nat'l Univ.)
Noh, Hak-Gon (Dept. of Aerospace Engineering, Pusan Nat'l Univ.)
Ku, Tae-Wan (Dept. of Aerospace Engineering, Pusan Nat'l Univ.)
Kang, Beom-Soo (Dept. of Aerospace Engineering, Pusan Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.34, no.5, 2010 , pp. 549-556 More about this Journal
Abstract
In general, materials that can be used to form elastic pads, such as urethane and rubber, are often used in flexible forming processes by inserting the pads between a blank and flexible die for smoothing the forming surface that is formed by a reconfigurable die. In this study, the effects of the elastic pad on formability in the flexible forming process for sheet metals are investigated by performing numerical simulations. In the simulation, the hyperelastic material model is used, where the urethane elastic pads serve as elastic cushions. Case studies are carried out for elastic materials with different hardness values and thicknesses. The results are used to evaluate formability by comparing the configuration of the deformed blank and its major cross-sectional profiles. It is verified that the elastic pad used in the flexible forming process for sheet materials should be hard and that its thickness should be chosen appropriately.
Keywords
Flexible Forming Process; Sheet Metal Forming; Elastic Pad; Finite Element Analysis;
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1 Heo, S. C., Seo, Y. H., Park, J. W., Ku, T. W., Kim, J. and Kang, B. S., 2008, “Numerical and Experimental Study on Plate Forming Process using Flexible Die,” Transactions of Materials Processing, Vol. 17, No.8, pp. 570-578.   DOI   ScienceOn
2 Li, M. Z., Cai, Z. Y., Sui, Z. and Yan, Q. G., 2002, “Multi-Point Forming Technology for Sheet Metal,” J. Mat. Proc. Tech., Vol. 129, pp. 333-338.   DOI   ScienceOn
3 Heo, S. C., Seo, Y. H., Ku, T. W., Kim, J. and Kang, B. S., 2009, “Study on Application of Flexible Die to Sheet Metal Forming Process,” Transactions of Materials Processing, Vol. 18, No.7, pp. 556-564.   DOI   ScienceOn
4 Tan, F. X., Li, M. Z. and Cai, Z. Y., 2007, “Research on the Process of Multi-Point Forming for the Customized Titanium Alloy Cranial Prosthesis,” J. Mat. Proc. Tech., Vol. 187-188, pp. 453-457.   DOI   ScienceOn
5 Sun, G., Li, M. Z., Yan, X. P., and Zhong, P. P., 2007, “Study of Blank-Holder Technology on Multi-Point Forming of Thin Sheet Metal,” J. Mat. Proc. Tech., Vol. 187-188, pp. 517-520.   DOI   ScienceOn
6 Qian, Z. R., Li, M. Z. and Tan, F. X., 2007, “The Analyse on the Process of Multi-Point Forming for Dish Head,” J. Mat. Proc. Tech., Vol. 187-188, pp. 333-338.
7 Cai, Z. Y., Wang, S. H., Xu, X. D. and Li, M. Z., 2008, “Numerical Simulation for the Multi-Point Stretch Forming Process of Sheet Metal,” J. Mat. Proc. Tech., Vol. 209, No. 1, pp. 396-407.   DOI   ScienceOn
8 Pasch, K. A., 1981, “Design of a Discrete Die Surface for Sheet Metal Forming,” S.B. Thesis, Department of Mechanical Engineering, Massachusetts Institute of Technology.
9 Li, M. Z., Liu, Y. H., Su, S. Z. and Li, G. Q., 1999, “Multi-Point Forming: a Flexible Manufacturing Method for a 3-d Surface sheet,” J. Mat. Proc. Tech., Vol. 87, Issues 1-3, pp. 277-280.   DOI   ScienceOn
10 Zhang, Q., Dean, T. A. and Wang, Z. R., 2006, “Numerical Simulation of Deformation in Multi-Point Sandwich Forming,” Int. J. Mach. Tools Manuf., Vol. 46, pp. 699-707.   DOI   ScienceOn