Korean Journal of Metals and Materials (대한금속재료학회지)

The Korean Institute of Metals and Materials (대한금속재료학회)
권호 표지

A Study on the Roll Forming Characteristics of an Asymmetric Roller with a 6 mm Steel Plate using the Finite Element Method

유한요소법을 사용한 6 mm 후판의 비대칭 롤포밍 성형변형특성에 관한 연구

  • Kim, Seongsoo (Department of Mechanical and Precision Engineering, Gyeongsang National University) ;
  • Lee, Gyeonghwan (Department of Mechanical and Precision Engineering, Gyeongsang National University) ;
  • Chung, Hanshik (Department of Mechanical and Precision Engineering, Gyeongsang National University) ;
  • Kim, Dong-Uk (School of Nano and Advanced Materials Engineering, Changwon National University) ;
  • Lee, Je-Hyun (School of Nano and Advanced Materials Engineering, Changwon National University) ;
  • Choi, Heekyu (School of Nano and Advanced Materials Engineering, Changwon National University)
  • 김성수 (경상대학교 정밀기계공학과) ;
  • 이경환 (경상대학교 정밀기계공학과) ;
  • 정한식 (경상대학교 정밀기계공학과) ;
  • 김동욱 (창원대학교 나노신소재공학부) ;
  • 이재현 (창원대학교 나노신소재공학부) ;
  • 최희규 (창원대학교 나노신소재공학부)
  • Received : 2009.05.15
  • Published : 2009.08.25
⟨ Previous Next ⟩

Abstract

As a novel method to produce a steel beam with 6mm thickness for buildings, a continuous roll forming process is reported. The roll shape is asymmetric and consists of 6 pairs of rollers to bend the steel plate from $0^{\circ}$ to $90^{\circ}$. Results obtained upon application of the roll forming process showed that the angle of the section plate is $90^{\circ}$. However, defects such as bowing and camber as high as 3.2 [$^{\circ}/m$] were observed. A FEM (Finite Element Method) analysis was applied to investigate the causes of the results for the region between rollers no. 5 and no. 6. The results of a FEM simulation of deformation and stress showed that there are some strong peak stresses on the upper surface and bottom surface of the material. The positions of the peak stresses did not show a correspondence between the upper and bottom surfaces. Thus, the defects in the process of roll forming with a 6 mm thick steel plate occur by the unbalanced stresses between the upper surface and bottom surface of the material in this study.

Keywords

Acknowledgement

Supported by : 한국학술진흥재단

References

  1. Y. R. Choi and J. G. Shin, J. of Ocean Engin. and Tech. 16, 38 (2002)
  2. L. Huang, H. Yang, M. Zhan, and L. Hu, Comput. Mat. Sci. 45, 449 (2009) https://doi.org/10.1016/j.commatsci.2008.11.005
  3. P. P. Gudur, M. A. Salunkhe, and U.S. Dixit, Int. J. of Mech. Sci. 50, 315 (2008) https://doi.org/10.1016/j.ijmecsci.2007.06.002
  4. N. S. Kim and S. M. Hong, Trans. of the Kor. Soc. of Mech. Eng. A. 25, 1213 (2001)
  5. Y. I. Kim, J. H. Kim, Y. C. Jeoung, and N. Kim, Trans. of the Kor. Soc. of Mech. Eng. A. 27, 1451 (2003) https://doi.org/10.3795/KSME-A.2003.27.9.1451
  6. W. J. Lee, J. S. Yang, G. W. Choi, Y. H. Park, I. M. Park, and Y. H. Park, J. Kor. Inst. Met. & Mater. 46, 538 (2008)
  7. H. T. Jeong, S. Y. Lee, T. K. Ha, and J. Y. Jung, J. Kor. Inst. Met. & Mater. 46, 150 (2008)
  8. M. Zhan, H. Yang, J. H. Zhang, Y. L. Xu, and F. Ma, J. of Mat. Proc. Tech. 187-188, 486 (2007) https://doi.org/10.1016/j.jmatprotec.2006.11.114
  9. X. Li, M. Wang, F. Du, and Z. Xu. J. of Iron and Steel Res. Int. 13, 25 (2006) https://doi.org/10.1016/S1006-706X(06)60090-3
  10. Y. Jiang, A. K. Tieu, and C. Lu, J. of Mat. Proc. Tech. 146, 167, (2004) https://doi.org/10.1016/j.jmatprotec.2003.10.012
  11. K. L. Roe and T. Siegmund, Eng. Frac. Mech. 70, 209 (2003) https://doi.org/10.1016/S0013-7944(02)00034-6
  12. S. H. Jung, S. H. Lee, and K. H. Kim, Trans. of the Kor. society of Mach. Tool Eng. 17, 78 (2008)
  13. S. H. Cho and J. W. Choi, Met. Mater. Int. 13, 323 (2007) https://doi.org/10.1007/BF03027889
  14. Y. Choi, J. H. Park, B. M. Kim, J. C. Choi, and B. H. Min, Met. Mater. Int. 6, 111 (2000) https://doi.org/10.1007/BF03026353
  15. M. Yang and K. Manabe, Met. Mater. Int. 4, 315 (1998)
  16. M. Yamashita, M. Gotoh and S. Atsumi, J. of Mat. Proc.Tech. 199, 163, (2008) https://doi.org/10.1016/j.jmatprotec.2007.07.037
  17. Y. Chen, C. Wang, S. Li, R. Wang, and J. He, Adv. in Eng.Soft. 32, 677 (2001) https://doi.org/10.1016/S0965-9978(01)00025-4
  18. H. Zhan, Y. Wang, C. Li, T. Han, B. Han, and W. Zhao, Opt. Laser Tech. 41, 251 (2009) https://doi.org/10.1016/j.optlastec.2008.06.011
  19. N. S. Kim and S. Y. Lee, Trans. of the Kor. Soc. of Mech. Eng. A. 26, 644 (2002) https://doi.org/10.3795/KSME-A.2002.26.4.644
  20. N. Thuillier, N. Maot, P. Manach, and D. Debois, J. of Mat. Proc. Tech. 198, 226 (2008) https://doi.org/10.1016/j.jmatprotec.2007.07.004
  21. J.v Mackerle, Fin. Elem. in Anal. and Des. 37, 253 (2001) https://doi.org/10.1016/S0168-874X(00)00039-1