Formability of Aluminum 5182-Polypropylene Sandwich Panel for Automotive Application

자동차용 알루미늄 5185-폴리프로필렌 샌드위치 판재의 성형성

  • Kim, Kee-Joo (CAE Team, Ssangyong Motor Co.) ;
  • Jeong, Hyo-Tae (Department of Metallurgical Engineering, Kangnung National University) ;
  • Sohn, Il-Seon (School of Automotive & Mechanical Engineering, Osan College, Center for Growth Power Characterization) ;
  • Kim, Cheol-Woong (Mechanical Engineering, U&I Corporation Research Center, Korea University) ;
  • Kim, Joong-Bae (Department of Mechanical Design, Dongyang Technical College)
  • 김기주 (쌍용자동차 CAE팀) ;
  • 정효태 (강릉대학교 금속재료공학) ;
  • 손일선 (오산대학 자동차기계계열, 성장동력 특성화사업단) ;
  • 김철웅 (고려대학교 기계공학과 유앤아이(주) 고려대연구소) ;
  • 김중배 (동양공업전문대학 기계설계과)
  • Published : 2007.03.01

Abstract

The objective of this study was to develop formability evaluation techniques in order to apply aluminum sandwich panel for automotive body parts. For this purpose, newly adopting formability evaluation (using limit dome height and plane strain test) was carried out in order to secure the fundamental data for the measurement of sheet metal forming and the establishment of optimum forming conditions of the aluminum sandwich panel. The results showed that there were good agreements between the old formability evaluation method and the new method which was more simplified than that of old one. From the results of these formability evaluation, the formability of sandwich panel was higher than that of aluminum alloy sheet alone which was the skin component for the sandwich panel. Also, it was found that sandwich panel could reduce the weight and could have the same flexural rigidity simultaneously when it was compared to the automotive steel sheet.

Keywords

References

  1. E. W. Veenstra, 'Aluminum-Plastic-Aluminum Sandwich Sheet for Maximum Weight Reduction in Body Panels,' SAE 1993, 930706
  2. J. D. Davis, 'Aluminum and Aluminum Alloys,' ASM International, pp.678-689, 1993
  3. K. J. Kim and K. S. Shin, 'Characterization of Aluminum Sandwich Panels,' Proc. of 5th Next Generation Workshop, KATECH, pp.639-647, 1997
  4. S. L. Semiatin and H. R. Piehler, 'Forming Limits of Sandwich Sheet Materials,' Metall. Trans. A, Vol.10A, pp.1107-1118, 1979
  5. F. Barlat, 'Forming Limit Diagrams-Predictions Based on Some Microstructural Aspects of Materials,' The Minerals, Metals & Society, pp.275-301, 1989
  6. S. C. Baik, J. H. Oh and D. N. Lee, 'Forming Limit Diagram of Perforated Sheet,' Scripta Metall., Vol.33, No.8, pp.1201-1207, 1995 https://doi.org/10.1016/0956-716X(95)00349-Z
  7. D. W. Manthey, R. M. Bassette and D. N. Lee, 'Application of the Latest Technology in Surface Strain Analysis for Metal Stamping Problem Solving,' PMA Tech. Symp. Proc., Vol.4, pp.397-409, 1994
  8. K. S. Kim, J. B. Nam, W. J. Choi and R. W. Chang, 'Experimental Study on Formability of Automotive Steel Sheet,' J. Korean Inst. Met. & Mater., Vol.32, No.5, pp.531-537, 1994
  9. D. N. Lee, 'Formability Testing of Sheet Metals,' Bulletin of the Korean Inst. Met. & Mat., Vol.10, No.3, pp.221-231, 1997
  10. Y. S. Kim and K. C. Park, 'Study on Stability of Plane Strain Stretching Test,' J. Korean Inst. Met. & Mater., Vol.32, No.1, pp.74-79, 1994
  11. S. L. Semiatin and J. J. Jonas, 'Formability and Workability of Metals,' ASM Series in Metal Forming, Ohio, pp.199-223, 1983
  12. A. F. Johnson and G. D. Sims, 'Mechanical Properties and Design of Sandwich Materials,' Composites, Vol.17, No.4, pp.321-328, 1986 https://doi.org/10.1016/0010-4361(86)90749-4
  13. K. J. Kim 'Plastic Strain Ratios and Planar Anisotropy of AA5182/Polypropylene/AA5182 Sandwich Sheets,' Int. J. Automotive Technology, Vol.6, No.3, pp.259-268, 2005