The forming of sheet metal in a desired and attractive shape is a process that requires an understanding of materials, mechanics and manufacturing principles. Manufacturing a consistent sheet metal component is challenging due to the nonlinear interactions of various material and process parameters. One of the major issues in the manufacturing of inconsistent？sheet metal？parts is springback. Springback is the elastic strain recovery in the material after the tooling is removed and the final shape of the product depends on the springback amount formed. In this study according to the result of simulation the inverted compensation method is adopted to optimize die surface design. Similarly, to predict and compensate the springback error this study presented an analytical approach of forming process in a stepwise modification of the automobile roof panel. Moreover, based on？Dynaform？and？finite element analysis of sheet metal stamping simulation the sprinback in automobile roof panel is predicted and compensated.？In addition, this study examines the significant requirements of the sheet metal forming precision of automobile body and the simulation of forming, stamping and springback of automobile roof panel is carried out, and the result of simulation also is analyzed.
References
[1]
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. AIP Conference Proceedings, 778, 90-95. https://doi.org/10.1063/1.2011199
[2]
Behrouzi, A., Dariani, B.M. and Shakeri, M. (2009) A One-Step Analytical Approach for Springback Compensation in Channel Forming Process. Proceedings of the World Congress on Engineering, Vol. II, London, 1-3 July 2009, 1757-1762.
[3]
Haleem, A. and Azmat, Z. (2010) Young’s Modulus Decrease after Cold Forming in High Strength Steels: An Investigation into the Mechanism Using Bake Hardenable Steel. LAP Lambert Academic Publishing, Saarbrücken.
Azraq, S.A., Teti, R. and Costa, J. (2006) Springback Prediction with FEM Analysis of Advanced High Strength Steel Stamping Process. Intelligent Production Machines and Systems, 2006, 264-269.
https://doi.org/10.1016/B978-008045157-2/50050-X
[6]
Chen, P. and Koc, M. (2007) Simulation of Springback Variation in Forming of Advanced High Strength Steels. Journal of Materials Processing Technology, 190, 189-198. https://doi.org/10.1016/j.jmatprotec.2007.02.046
[7]
Wagoner, R.H., Lim, H. and Lee, M.-G. (2013) Advanced Issues in Springback. International Journal of Plasticity, 45, 3-20.
https://doi.org/10.1016/j.ijplas.2012.08.006
[8]
Wagoner, R. and Li, M. (2007) Simulation of Springback: Through-Thickness Integration. International Journal of Plasticity, 23, 345-360.
https://doi.org/10.1016/j.ijplas.2006.04.005
[9]
Vladimirov, I.N., Pietryga, M.P. and Reese, S. (2009) Prediction of Springback in Sheet Forming by a New Finite Strain Model with Nonlinear Kinematic and Isotropic Hardening. Journal of Materials Processing Technology, 209, 4062-4075.
https://doi.org/10.1016/j.jmatprotec.2008.09.027
[10]
Wang, Z., Hu, Q., Yan, J. and Chen, J. (2017) Springback Prediction and Compensation for the Third Generation of UHSS Stamping Based on a New Kinematic Hardening Model and Inertia Relief Approach. The International Journal of Advanced Manufacturing Technology, 90, 875-885.
https://doi.org/10.1007/s00170-016-9439-x
[11]
Livatyali, H. and Altan, T. (2001) Prediction and Elimination of Springback in Straight Flanging Using Computer Aided Design Methods: Part 1. Experimental Investigations. Journal of Materials Processing Technology, 117, 262-268.
https://doi.org/10.1016/S0924-0136(01)01164-5
[12]
Livatyali, H., Wu, H.C. and Altan, T. (2002) Prediction and Elimination of Springback in Straight Flanging Using Computer-Aided Design Methods: Part 2: FEM Predictions and Tool Design. Journal of Materials Processing Technology, 120, 348-354. https://doi.org/10.1016/S0924-0136(01)01161-X
[13]
Peng, X., Shi, S. and Hu, K. (2013) Comparison of Material Models for Spring Back Prediction in an Automotive Panel Using Finite Element Method. Journal of Materials Engineering and Performance, 22, 2990-2996.
https://doi.org/10.1007/s11665-013-0600-5
[14]
Wang, H., Zhou, J., Zhao, T. and Tao, Y. (2015) Springback Compensation of Automotive Panel Based on Three-Dimensional Scanning and Reverse Engineering. The International Journal of Advanced Manufacturing Technology, 85, 1187-1193.
https://doi.org/10.1007/s00170-015-8042-x
[15]
Ablat, M.A. and Qattawi, A. (2017) Numerical Simulation of Sheet Metal Forming: A Review. The International Journal of Advanced Manufacturing Technology, 89, 1235-1250.
[16]
Lingbeek, R., Huétink, J., Ohnimus, S., Petzoldt, M. and Weiher, J. (2005) The Development of a Finite Elements Based Springback Compensation Tool for Sheet Metal Products. Journal of Materials Processing Technology, 169, 115-125.
https://doi.org/10.1016/j.jmatprotec.2005.04.027
[17]
Meinders, T., Burchitz, I.A., Bonte, M.H.A. and Lingbeek, R.A. (2008) Numerical Product Design: Springback Prediction, Compensation and Optimization. International Journal of Machine Tools and Manufacture, 48, 499-514.
https://doi.org/10.1016/j.ijmachtools.2007.08.006
[18]
Hegde, G.S., Shivaprasad, J. and Sridhar, R. (2009) Interface Driven Optimisation of Springback in Stretch Bending of Autobody Panels. Computational Materials Science and Surface Engineering, 1, 168-173.
[19]
Tekiner, Z. (2004) An Experimental Study on the Examination of Springback of Sheet Metals with Several Thicknesses and Properties in Bending Dies. Journal of Materials Processing Technology, 145, 109-117.
https://doi.org/10.1016/j.jmatprotec.2003.07.005
