Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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A Study on D.D.I. Load for Forming of the CNG Storage Vessel

CNG 저장용기의 성형을 위한 D.D.I. 하중에 관한 연구

  • Lee, Hyun Woo (Creative Engineering System, Pusan National Univ.) ;
  • Bae, Jun Ho (School of Mechanical Engineering, Pusan National Univ.) ;
  • Kim, Chul (Research Institute of Mechanical Technology, Pusan National Univ.)
  • 이현우 (부산대학교 창의공학시스템) ;
  • 배준호 (부산대학교 기계공학부) ;
  • 김철 (부산대학교 기계기술연구원)
  • Received : 2012.12.03
  • Accepted : 2012.05.07
  • Published : 2013.06.01
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Abstract

In this study, a theoretical analysis method was suggested for predicting forming loads of continuous deep drawing and ironing processes (D.D.I. processes) by considering back tension and continuity equation, and FEA for D.D.I. processes was performed. Dimensions of a punch and a mold on the basis of design rules for a CNG storage vessel were applied for the analysis. To verify the suggested theoretical analysis, the results of theoretical analysis were compared with both those of FEA and experiments of previous studies. As the result of analysis, the values and tendencies of the loads predicted by the theoretical analysis were in agreement with those of FEA and the experiments. So, it is considered that the analysis suggested has reliability for predicting the forming loads of the continuous processes(deep drawing+ironing(1)+ironing(2)).

Keywords

References

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