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A Study on the Surface Deflection in Rectangular Embossing Considering Planar Anisotropy

평면이방성을 고려한 사각엠보싱 공정의 미세면굴곡에 대한 연구

  • Kim, J.H. ;
  • Chung, W.J. (Dept. Mechanical System Design Engineering, Seoul National University of Science & Technology)
  • 김진학 (서울과학기술대학교 일반대학원 제품설계금형공학과) ;
  • 정완진
  • Received : 2013.07.03
  • Accepted : 2013.09.03
  • Published : 2013.10.01

Abstract

Recently, numerical predictions of surface deflection based on curvature analysis have been developed. In the current study, a measure of surface deflection is proposed as the maximum variation of curvature difference between the panel and the tool in order to account for surfaces that have high curvature. The current study focused on the assessment of accuracy for the surface deflection prediction with the consideration of planar anisotropy. As an example, a shallow rectangular drawn part with rectangular embossing was considered. In terms of the proposed surface deflection measure, the maximum variation of curvature difference, the prediction with a planar anisotropic model shows better correspondence with experiment than the one using a normal anisotropic model.

Keywords

References

  1. K. Yoshida, 1993, Handbook of Ease or Difficulty in Press Forming, National Center for Manufacturing Science, Japan.
  2. M. Yoshida, T. Shimomura, 1983, A Study of Surface Deflection Around the Handle Portion of an Automobile Door-Outer Panel Using a Model Die, J. Jpn. Soc. Technol. Plast., Vol. 24, No. 275, pp. 1260-1267.
  3. M. Matsui, N. Iwata, 1983, Initiation and Growth of Buckles of Square Steel Sheets by Diagonal Biaxial Tension, J. Jpn. Soc. Technol. Plast., Vol. 24, No. 275, pp. 1268-1273.
  4. L. Liu, T. Sawada, M. Sakamoto, 2000, Evaluation of the Surface Deflections in Pressed Automobile Panels by an Optical Reflection Method, J. Mater. Process. Technol., Vol. 103, No. 2, pp. 280-287. https://doi.org/10.1016/S0924-0136(00)00485-4
  5. S. Zhenzhong, Y. Yuying, 2006, A Study of Surface Deflection in Pressed Automobile Panels, J. Mater. Process. Technol., Vol. 180, No. 1-3, pp. 53-59 https://doi.org/10.1016/j.jmatprotec.2006.04.124
  6. T. Sawata, L. Liu, 1998, Simulation of Materials Processing: Theory, Methods and Applications, edited by J. Huetink, F. P. T. Baaijens, Balkema, pp. 863-868.
  7. A. Anderson, 2005, Proc. NUMISHEET 2005.(eds, L. M. Smith, F. Pourboghrat, J. W. Yoon, T. B. Stoughton), AIP, Detroit, Michigan, USA, Vol. A, pp. 113-118.
  8. C. D. Park, W. J. Chung, B. M. Kim, 2007, A Numerical and Experimental Study of Surface Deflections in Automobile Panels, J. Mater. Process. Technol., Vol. 187-188, pp. 99-102. https://doi.org/10.1016/j.jmatprotec.2006.11.129
  9. W. J. Chung, W. S. Kim, J. H. Kim, T. H. Seo, T. C. Jung, 2011, Proc. NUMISHEET 2011. (eds, K. Chung, H. N. Han, H. Huh, F. Barlat, M. G. Lee), AIP, Seoul, Korea, pp. 1072-1077.
  10. C. O. Lee, K. S. Park, B. C. Park, Y. W. Lee, 2004, Algorithms for Stylus Instruments to Measure Aspheric Surfaces, Research Report Series, KAIST, Daejeon, Korea.
  11. W. S. Kim, J. H. Kim, W. J. Chung, 2012, Proc. Kor. Soc. Tech. Plast. Spring Conf., May, Kor. Soc. Tech. Plast., Seoul, Korea, pp. 278-280.

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