FEA Analysis on 600MPa TRIP Steel Variable Section Roll Forming with Protrusion and Hole

Abstract:

Trip steel is broadly used in automobile manufacturing with its high strength and enhanced formability. For the variable section parts with protrusion and hole, roll forming is a kind of feasible way to realize continuous parts manufacturing, In the paper, with deep understanding of roll forming process and reasonable simplification, the FEM model of a multi-step variable section roll forming of 600MPa trip steel parts with protrusion and hole is established to analyze the mechanics and the deformation characteristics of the forming procedure. Equivalent stress, equivalent strain, sheet thickness and springback amount are extracted from the simulation result and studied comparatively, which is of great importance to understand the appearance of the forming defects. In addition, the forming load and torque of the rollers can also be obtained to guide the design of the variable section roll forming product line.

• Periodical: Advanced Materials Research (Volumes 457-458)
• Pages: 299-303
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.457-458.299
• Online since: January 2012
• Authors: Wen Fang Peng, Qiang Li, Yu Yan
• Keywords: FEM Modeling, Flexible Roll Forming, Forming Mechanics, Resultant Force, Springback Amount, Torque

References

[1] Fei-chin Jan, Oladipo Onipede Jr. Simulation of Cold Roll Forming of Steel Panels. University of Pittsburgh. 2000, 5.

[2] Zeng Guo, Lai Xin-min, Yu Zhong-qi, Lin Zhong-qin. Numerical simulation and sensitivity analysis of parameters for multistand roll forming of channel section with outer edge. Journal of iron and steel research, International. 2009. 16(1): 32-37.

DOI: 10.1016/s1006-706x(09)60007-8

[3] Q.V. Bui, J.P. Ponthot. Numerical simulation of cold roll-forming processes. Journal of materials processing technology 202(2008): 275-282.

DOI: 10.1016/j.jmatprotec.2007.08.073

[4] Heislitz, F., Livatyali, H., Ahmetoglu, M.A., Kinzel, G.L., Altan, T., 1996. Simulation of roll forming process with the 3D FEM code PAM-STAMP. J. Mater. Process. Technol. 1996, 59(1-2): 59-67.

DOI: 10.1016/0924-0136(96)02287-x

[5] Tehrani, M.S., Naeini, H.M., Hartley, P., Khademizadeh, H. Localized edge buckling in cold roll-forming of circular tube section. J. Mater. Process. Technol, 2006, 177(1-3): 617-620.

DOI: 10.1016/j.jmatprotec.2006.03.201

[6] Xiaoliang Luo, Zhongqi Yu, Shuhui Li, Guo Zeng. Finite element analysis of the springback in high strength steel roll forming. Journal of Plasticity Engineering (In Chinese). 2008, 15(5).