소성∙가공 (Transactions of Materials Processing)

  • 제17권3호
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  • Pages.197-202
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  • 2008
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  • 1225-696X(pISSN)
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  • 2287-6359(eISSN)
한국소성∙가공학회 (The Korean Society for Technology of Plasticity and materials processing)
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DP780 초고장력 강판을 이용한 자동차용 시트레일의 성형공정 설계

Process Design of Seat Rail in Automobile by the Advanced High Strength Steel of DP780

  • 고대철 (부산대학교 동남권부품소재 산학협력혁신연구소) ;
  • 안재홍 (부산대학교 대학원 정밀가공시스템공학) ;
  • 장명진 ((주)다스 금형설계팀) ;
  • 배재호 ((주)다스 금형설계팀) ;
  • 김창호 (동의대학교 기계공학과) ;
  • 김병민 (부산대학교 기계공학부)
  • 발행 : 2008.06.01
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초록

The control of springback is very important in sheet metal forming since springback affects the dimensional inaccuracy of product. The object of this study is to design the manufacturing process for the improvement of the performance of seat rail by DP780. The influence of process variables such as bend angle and pad force on the springback has been firstly investigated through the comparison between the results of FE-analysis and trial out for initial design based on designer's experience. The process variables of the initial design have been modified in order to improve the dimensional accuracy of seat rail from the prediction of springback by FE-analysis. It was shown from experiment that the improved design satisfied the required specifications such as the dimensional accuracy and the strength of seat rail.

키워드

참고문헌

  1. C. D. Park. 2006, A Study on Multi-operation Forming and Springback Analysis for Autobody Panels
  2. I. J. Kwon, J. K. Rim, H. J. Kim, 2001, Evaluation of the Springback Characteristics for Automotive Steel Sheets by the S-Rail Forming Test, Journal of Industrial Technology, Kangwon Nat`l. Univ., Korea No21, B, pp. 287-294
  3. W. Y. Yang, S. Y. Lee, Y. T. Keum, J. Y. Hwang, C. S. Yoon, C. S Shin, W. S. Cho, 2002, Development of Springback Reduction Technology for High- Strength Steel Sheets, The Korean Society of Automotive Engineers, United symposium, pp. 1011-1015
  4. J. H. Lee, D. W. Kim, S. M Sohn, M. Y. Lee, Y. H. Moon, 2007, Analysis of springback of sheet metal(I) : Analytical model based on the residual differential strain, KSTP, 1225-696x https://doi.org/10.5228/KSPP.2007.16.7.509
  5. J. H. Lee, D. W. Kim, S. M Sohn, M. Y. Lee, Y. H. Moon, 2007, Analysis of springback of sheet metal(II) : Experimental validation of analytical model, KSTP, 1225-696x https://doi.org/10.5228/KSPP.2007.16.7.516
  6. Y. E. Ling, H. P. Lee, B. T. Cheok, 2005, Finite element analysis of springback in L-bending of sheet metal, Journal of Materials Processing Technology, Vol. 168, pp. 296-302 https://doi.org/10.1016/j.jmatprotec.2005.02.236
  7. Bradley N. Maker, Xinhai Zhy, 2007, Input Parameters for Metal Forming Simulation using LSDyna, Livemore Software Technology Corporation
  8. L. C. Sousa, C. F. Castro, C. A. C. Antonio, 2006, Optimal design of V and U bending processes using genetic algorithms, Journal of Materials Processing Technology, Vol. 172, pp. 35-41 https://doi.org/10.1016/j.jmatprotec.2005.08.011
  9. M. C. Oliveira, J. L. Alves, B. B. Chaparro, L. F. Menezes, 2007, Study on the influence of workhardening modeling in springback prediction, International Journal of Plasticity, Vol. 23, pp. 516-543 https://doi.org/10.1016/j.ijplas.2006.07.003

피인용 문헌

  1. Process Design of Automobile Seat Rail Lower Parts using Ultra-High Strength, DP980 Steel vol.17, pp.2, 2018, https://doi.org/10.14775/ksmpe.2018.17.2.160