대한기계학회논문집A (Transactions of the Korean Society of Mechanical Engineers A)

  • 제32권4호
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  • Pages.327-332
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  • 2008
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  • 1226-4873(pISSN)
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  • 2288-5226(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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자동차 알루미늄 범퍼의 가변 곡률 압출공정 개발

Process Development of Variable Curvature Extrusion for Automotive Aluminum Bumper

  • 조영준 (부산대학교 대학원 정밀기계공학과) ;
  • 이상곤 (부산대학교 대학원 정밀기계공학과) ;
  • 오개희 ((주)동양강철 기술연구소) ;
  • 박상우 ((주)동양강철 기술연구소) ;
  • 김병민 (부산대학교 기계공학부)
  • 발행 : 2008.04.01
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초록

The effectiveness of vehicle parts made through extrusion is in the limelight because of the advantages of high strength stiffness materials can be produced and the number of processes can be drastically reduced. Therefore, the parts should have sufficient stiffness and be lightweight enough to improve fuel efficiency. However, the application of extruded aluminum requires pre-bending technologies that can manufacture the complex designs profiles demanded by vehicle parts. The aim of this research is that the development of the variable curvature extrusion technology that can produce a variety of curvature. In order to produce a variable curvature, the guide transfer speed and transfer time should be controlled properly. The guide transfer speed and transfer time were examined by the theoretical analysis. A model was developed to simulate the deformation behaviors of extrusion and bending process from the symmetric bumper with range of radii from 1863mm to 2163mm. The theoretical analysis and FE analysis were verified through experimental method.

키워드

참고문헌

  1. Miller, W. S., Zhuang, L. and Wittebrood, A. J., 2000, 'Recent Development in Aluminium Alloys for the Automotive Industry,' Material Science and Engineering, Vol. 280, pp.37-49 https://doi.org/10.1016/S0921-5093(99)00653-X
  2. Kleiner, M., Chatti, S. and Klaus, A., 2006, 'Metal Forming Techniques for Lightweight Construction,' Journal of Materials Processing Technology, Vol. 177, pp. 2-7 https://doi.org/10.1016/j.jmatprotec.2006.04.085
  3. Muller, and Klaus, B., 2006, 'Bending of Extruded Profiles During Extrusion Process,' International Journal of Machine Tools & Manufacture, Vol. 46, pp.1238-1242 https://doi.org/10.1016/j.ijmachtools.2006.01.036
  4. Peter, G.., Herbert, B., David, K.H. and Anjali. K.M.D.S., 2005, 'Free-Bending-A New Bending Technique in the Hydroforming Process Chain,' Journal of Materials Processing Technology, Vol. 167, pp.302-308 https://doi.org/10.1016/j.jmatprotec.2005.05.052
  5. Lee, J. M., Kim, B. M., Kang, C. G. and Jo, H. H., 2005, 'FE Analysis of Extrusion Process and Estimation of Welding Strength for Micro Multi Cell Tube with Serration,' Journal of the Korean Society of Precision Engineering, Vol. 22, No.9, pp.45-59, 2005
  6. Lee, J. M., Kim, B. M., Kang, C. G.. and Jo, H. H., 2004, 'Development of Direct Extrusion Process on Al 1050 Condenser Rube by Using Porthole Die,' Journal of the Korean Society of Precision Engineering, Vol. 21, No.7, pp.53-61

피인용 문헌

  1. Development of Al Bumper Back Beam by Using Curvature Extrusion Process vol.33, pp.5, 2009, https://doi.org/10.3795/KSME-A.2009.33.5.502