Sheet metal forming simulation considering die deformation
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Due to environmental concerns and safety regulations in the automotive industry, the development of strong and lightweight cars has been a hot issue in the last decade. One solution for this purpose would be to use high-strength steel (HSS) and advanced high-strength steel (AHSS). These materials can make the car lighter while maintaining the crash resistance of the vehicle. HSS and AHSS have more resistance force in the die structure compared with conventional steel due to their higher yield and tensile strength and thus, these materials have a greater effect on die deformation during the sheet metal forming process. As a result, die deformation can affect the blank sheet’s drawn pattern, strain, and stress as well as springback. This study presents a sheet metal forming simulation that considers die deformation. The simulation process was compared with conventional simulation methods. Our results indicate that the sheet metal forming simulation with die deformation consideration provides useful information on the die structure as well as formability and springback.
Key WordsSafety regulation HSS (High Strength Steel) AHSS (Advanced High Strength Steel) Die deformation, Sheet metal forming simulation Die structure analysis
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- Aitharaju, V., Liu, M., Dong, J., Zhang, J. and Wang, C. T. (2005). Integrated forming simulations and die structural analysis for optimal die designs. Proc. Numisheet 2005, A, 96–100.Google Scholar
- Huh, H., Lim, J. H., Song, J. H., Lee, K. S., Lee, Y. W. and Han, S. S. (2003). Crashworthiness assessment of side impact of an auto-body with 60trip steel for side members. Int. J. Automtotive Technology 4,3, 149–156.Google Scholar
- International Iron and Steel Institute (2006). Advanced High Strength Steel Application Guidelines.Google Scholar
- Keum, Y. T., Ahn, I. H., Lee, I. K., Song, M. H., Kwon, S. O. and Park, J. S. (2005). Simulation of stamping process of automotive panel considering die deformation. Proc. Numisheet 2005, A, 90–95.Google Scholar
- Kim, H. Y., Choi, K. Y., Lee, I. H. and Song, C. G. (2008). Die Design and Sheet Metal Forming. Kyobo Book. Seoul. Korea. 340–350.Google Scholar
- Kwon, H. S., Cho, H. S., Park, D. H. and Lee, J. Y. (2000). Study on vehicle structural design criteria for application of tailor welded blank and high strength steel. Proc. Korea Automotive Society, 147–153.Google Scholar
- Suh, D. Y., Lee, M. C. and Joun, M. S. (1998). Elastic finite element method of the cold forged die prestressed by shrinkage rings. J. Korean Society for Technology of Plasticity 7,4, 347–353.Google Scholar
- Yin, J. J., Shin, Y. S. and Kim, H. Y. (2001). Analysis on the bending deflection of the blank holder in automotive body panel draw die. Trans. Korean Society of Machine Tool Engineers 10,3, 68–74.Google Scholar