A Study on Roll Forming Simulation of Under Rail

언더레일의 롤포밍 공정 시뮬레이션에 관한 연구

  • 정상화 (조선대학교 기계공학과) ;
  • 이상희 (조선대 대학원 기계공학과) ;
  • 김광호 (조선대 대학원 기계공학과) ;
  • 김재상 (조선대 대학원 기계공학과) ;
  • 김종태 (재영엠티에스(주) 광주공장)
  • Published : 2008.06.15

Abstract

Roll forming process is one of the most widely used processes in the world for forming metals. It can manufacture goods of the uniform cross section throughout the continuous processing. However, process analysis is very difficult because of the inherent complexity. Therefore, time is consuming and much money are needed for manufacturing goods. In order to overcome this difficulty, a new computational method based on the rigid-plastic finite element method is developed for the analysis of roll forming process. In this paper, the design of roll forming process and the simulation are performed to manufacture the upper member at under rail composed of three members. The cold rolled carbon steel sheet(SCP-1) is used in this simulation, and a flow stress equation is set up by conducting the tensile test. The upper member is designed using two types of design for a excellent design. Each types are simulated and compared with the strain distribution using SHAPE-RF software. In addition, the numerical magnitude of bow and camber which are the buckling phenomenon is estimated.

Keywords

References

  1. Wick, C., Benedict, J. T., and Veilleux, R. F., 1984, Tool and Manufacturing Engineers Handbook, Society of Manufacturing Engineers, Michigan, Vol. 2, Chapter 8
  2. Kiuchi, M., 1973, "Analysis Study on Cold Roll Forming Process," Report of the Inst. of Ind Sci., Vol. 23, pp. 1-23
  3. Kiuchi, M. and Koudobashi, T., 1984, "Automated Design System of Optimum Roll Profiles for Cold Roll Forming Proc," 3rd Int Conf. on Rotary Metal Working Process, pp. 423-427
  4. Farzin, M., Salmani, M., and Shameli, E., 2002, "Determination of Buckling limit of Strain in Cold Roll Forming by the Finite Element Analysis," Materials Processing Technology, Vol. 125-126, pp. 626-632 https://doi.org/10.1016/S0924-0136(02)00357-6
  5. Grondin, G. Y., Elwi, A. E., and Cheng, J. J., 1999, "Buckling of Stiffened Steel Plates-A Parametric Study," Journal of Constructional Steel Research, Vol. 50, pp. 151-175 https://doi.org/10.1016/S0143-974X(98)00242-9
  6. Rhodes, J., 1996, "A Semi-analytical Approach to Buckling Analysis for Composite Structures," Composite Structures, Vol. 35, pp. 93-99 https://doi.org/10.1016/0263-8223(96)00026-8
  7. Halmos, G. T., 2005, Roll Forming Handbook, CRC Taylor & Francis, New York, Chapter 5
  8. Hong, S. M., Kim, D. S., Yun, H. J., and Kim, N. S., 2000, "Development of Roll Forming Simulation Program," Society of CAD/CAM Engineers, pp. 647-652
  9. Jeong, D. W. and Yang, K. B., 1999, "A Study the Criterion for Membrane/Shell Mixed Element and Application to the Rigid-Plastic/Elastic-Plastic Finite Element Analysis," The Korean Society of Ocean Engineers, Vol. 13, No. 2, pp. 1-10
  10. Ahn, D. G., Jung, D. W., Yang, D. Y., and Jung, W. J., 1996, "Rigid-Plastic Explicit Finite Element Formulation for Two-Dimensional Analysis of Sheet Metal Forming Processes," The Korean Society of Mechanical Engineers, Vol. 20, No. 1, pp. 88-99