소성∙가공 (Transactions of Materials Processing)

  • 제17권3호
  • /
  • Pages.170-181
  • /
  • 2008
  • /
  • 1225-696X(pISSN)
  • /
  • 2287-6359(eISSN)
한국소성∙가공학회 (The Korean Society for Technology of Plasticity and materials processing)
권호 표지
DOI QR코드

DOI QR Code

니켈-수소 2차 전지용 고세장비의 직사각 컵에 대한 성형공정 설계 및 유한요소해석

Process Design and Finite Element Analysis of Rectangular Cup used for Ni-MH Battery with High Aspect Ratio

  • 발행 : 2008.06.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The shape of rectangular cup used for Ni-MH(Nickel-coated Metal Hydrogen) battery for hybrid car looks quite simple, but the forming process of extruding and setting up process design are highly difficult. Furthermore, there are few concrete reports on the rectangular deep drawn cup as part of hybrid vehicles till now. In this study, process design for rectangular cup in the multi-stage deep drawing process is carried out, and FE analysis is also preformed based on the result of the process design. From the simulation result, some unexpected problems such as earing, wrinkling and excessive thickness changes of the intermediate blank occurred. To overcome these failures, a series of modification for punch shape in the forming process design are completed and applied. Considering the modified punch shape in the multi-stage deep drawing process, additional FE analysis is also carried out and the simulation result is verified in view of the deformed shape, thickness change and effective strain distribution. The result of FE analysis with the improved process design confirmed not only reducing thinning of wall and possibilities of failure but also improving the quality of drawing product through the modification of punch shape.

키워드

참고문헌

  1. R. S. Benson, N. D. Whitehouse, 1979, Internal combustion engines, Oxford, Pergamon Press
  2. A. Dubreuil, F. Foucher, 2007, HCCI combustion: effect of NO in EGR, Proceedings of the Combustion Institute, Vol. 31, pp. 2789-2886
  3. C. A. Idcheria, L. M. Pickett, 2007, Effect of EGR on diesel premixed-burn equivalence ratio, Proceedings of the Combustion Institute, Vol. 31, pp. 2931-2938 https://doi.org/10.1016/j.proci.2006.08.022
  4. A. Kimura, I. Ando, K. Itagaki, 2005, Development of hybrid system for SUV, SAE International, No. 2005-01-0273
  5. S. B. Park, Y. Choi, B. M. Kim, J. C. Choi, B. H. Kim, 1996, A study on the computer-aided design system of axisymmetric deep drawing process(I), Transactions of Materials Processing, Vol. 5, No. 1, pp. 27-36
  6. W. J. Chung, J. H. Kim, J. G. Ryu, 2003, New design of cylindrical cup drawing by forming, analysis, Transactions of Materials Processing, Vol. 12, No. 7, pp. 647-653 https://doi.org/10.5228/KSPP.2003.12.7.647
  7. V. Pegada, Y. Chun, S. Santhanam, 2002, An algorithm for determining the optimal blank shape for the deep drawing of aluminum cups, Journal of Materials Processing Technology, Vol. 125-126, pp. 743-750 https://doi.org/10.1016/S0924-0136(02)00382-5
  8. D. H. Park, W. R. Bae, S. B. Park, S. S. Kang, 2000, A study on the influence of blank shape in elliptical deep drawing process, Transactions of Materials Processing, Vol. 9, No. 5, pp. 469-477
  9. J. K. Chung, W. S. Cho, T. S. Lee, 2004, Combined process of ironing and redrawing in progressive drawing, Journal of the KSME, Part A, Vol. 28, No. 5, pp. 654-661 https://doi.org/10.3795/KSME-A.2004.28.5.654
  10. S. Yoshihara, H. Nishimura, H. Yamamoto, K. Manabe, 2003, Formability enhancement in magnesium alloy stamping using a local heating and cooling technique: circular cup deep drawing process, Journal of Materials Processing Technology, Vol. 142, pp. 609-613 https://doi.org/10.1016/S0924-0136(03)00248-6
  11. F. K. Chen, T. B. Huang, C. K. Chang, 2003, Deep drawing of square cups with magnesium alloy AZ31 sheets, International Journal of Machine Tools and Manufacture, Vol. 43, pp. 1553-1559 https://doi.org/10.1016/S0890-6955(03)00198-6
  12. M. Gavas, M. Izciler, 2007, Effect of Blank holder gap on deep drawing of square cups, Materials & Design, Vol. 28, pp. 1641-1646 https://doi.org/10.1016/j.matdes.2006.03.024
  13. S. H. Kim, S. H. Kim, H. Huh, 2001, Analysis of rectangular cup drawing process with large aspect ratio using multi-stage finite element inverse analysis, Transactions of Materials Processing, Vol. 10, No. 5, pp. 389-395
  14. S. H. Kim, S. H. Kim, H. Huh, 2002, Tool design in a multi-stage drawing and ironing process of a rectangular cup with a large aspect ratio using finite element analysis, International Journal of Machine Tools & Manufacture, Vol. 42, pp. 863-875 https://doi.org/10.1016/S0890-6955(02)00003-2
  15. H. J. Kim, T. W. Ku, B. S. Kang, 2001, FE analysis and die design of the multi-stage rectangular deep drawing process with the large aspect ratio, Transactions of Materials Processing, Vol. 10, No. 6, pp. 456-464
  16. T. W. Ku, B. K. Ha, W. J. Song, B. S. Kang, S. M. Hwang, 2002, Finite element analysis of multi-stage deep drawing process for high precision rectangular case with extreme aspect ratio, Journal of Materials Processing Technology, Vol. 130-131, pp. 128-134
  17. T. W. Ku, C. S. Park, B. S. Kang, 2004, A study on initial blank design and modification for rectangular case forming with extreme aspect ratio, Transactions of Materials Processing, Vol. 13, No. 5, pp. 307-318 https://doi.org/10.5228/KSPP.2004.13.4.307
  18. T. W. Ku, H. Y. Ryu, J. K. Lee, B. S. Kang, 2007, Numerical and experimental approach for rectangular cup of Li-Ion battery container with extreme aspect ratio, Key Engineering Materials, Vol.340-341, pp. 689-694 https://doi.org/10.4028/www.scientific.net/KEM.340-341.689
  19. LS-DYNA Theoretical Manual, 1998, Livermore Software Technology Coporation, Livermore, CA, USA, June
  20. S. Kobayashi, S. I. Oh, T. Altan, 1989, Metal forming and the finite element method, Oxford University Press, NY, USA
  21. D. P. Flanagan, T. Belytschko, 1981, A uniform strain hexahedron and quadrilateral with orthogonal gourglass control, International Journal of Numerical Method in Engineering, Vol. 17, pp. 679-706 https://doi.org/10.1002/nme.1620170504

피인용 문헌

  1. Numerical Analysis and Experimental Evaluation on Formability of Membrane for LNG Storage Tank vol.20, pp.6, 2011, https://doi.org/10.5228/KSTP.2011.20.6.409
  2. Numerical Simulation for a Multi-Stage Deep Drawing of Anisotropic SUS409L Sheet into a Rectangular Cup vol.22, pp.3, 2013, https://doi.org/10.5228/KSTP.2013.22.3.133