Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Effect of Process Parameters on Hydroforming Characteristics of a Rectangular Shape Flange

사각 형상 플랜지 형성을 위한 액압성형시 공정 조건에 따른 성형특성

  • 김수희 (부산대학교 기계공학부/정밀정형 및 금형 가공 연구소) ;
  • 김상윤 (부산대학교 기계공학부/정밀정형 및 금형 가공 연구소) ;
  • 전찬후 (부산대학교 기계공학부/정밀정형 및 금형 가공 연구소) ;
  • 주병돈 (부산대학교 기계공학부/정밀정형 및 금형 가공 연구소) ;
  • 문영훈 (부산대학교 기계공학부)
  • Received : 2011.10.10
  • Accepted : 2011.12.15
  • Published : 2012.02.01
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Abstract

Hydroforming has attracted the attention of manufacturing industries for vehicles and transportation systems. A wide range of products such as subframes, camshafts, radiator frames, axles and crankshafts are made by the hydroforming process. Hydroformed parts often need to be structurally joined to other components during assembly. Therefore it is useful if the hydroformed automotive parts can be attached with a localized flange. In this study, a hydroforming process to produce a rectangular shape flange is proposed. FE analysis to form the flanged rectangular shape was performed by Dynaform 5.5. The hydroforming characteristics at various die aspect ratios and feeding conditions were analyzed and optimal process conditions which can avoid defects are suggested. For validation purposes, hydroforming experiments to form the flange were conducted with the optimized conditions. The results show that the flanged parts can be successfully formed with a hydroforming process without additional processing steps.

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References

  1. M. Koc, T. Altan, 2002, Prediction of Forming Limits and Parameters in the Tube Hydroforming Process, Int. J. Mach. Tools Manuf., Vol. 42, No. 1, pp. 123-138. https://doi.org/10.1016/S0890-6955(01)00048-7
  2. H. L.Xing, A. Makinouchi, 2001, Numerical Analysis and Design for Tubular Hydroforming, J. Mech. Sci., Vol. 43, No. 4, pp. 1009-1026. https://doi.org/10.1016/S0020-7403(00)00046-1
  3. F. dohmann, Ch. Hartl, 1997, Tube Hydroforming Research and Practical Application, J. Mater. Process. Technol., Vol. 71, No. 1, pp. 174-186. https://doi.org/10.1016/S0924-0136(97)00166-0
  4. O. Kreis, P. Hein, 2001, Manufacturing System for the Integrated Hydroforming, Trimming and Welding of Sheet Metal Pairs, J. Mater. Process. Technol., Vol. 115, No. 1, pp. 49-54. https://doi.org/10.1016/S0924-0136(01)00763-4
  5. L. Lang, G. Gu, T. Li, X. Zhou, 2008, Numerical and Experimental Confirmation of the Calibration Stage's Effect in Multi-operation Sheet Hydroforming using Poor-formability Materials, J. Mater. Process. Technol., Vol. 201, No. 1-3, pp. 97-100. https://doi.org/10.1016/j.jmatprotec.2007.11.233
  6. L. H. Lang, Z. R. Wang, D. C. Kang, S. J. Yuan, S. H. Zhang, J. Danckert, K. B. Nielsen, 2004, Hydroforming Highlights: Sheet Hydroforming and Tube Hydroforming, J. Mater. Process. Technol., Vol. 151, No. 1-3, pp. 165-177. https://doi.org/10.1016/j.jmatprotec.2004.04.032
  7. H. U. Lucke, Ch. Hartl, T. Abbey, 2001, Hydroforming, J. Mater. Process. Technol., Vol. 115, No. 1, pp. 87-91. https://doi.org/10.1016/S0924-0136(01)00774-9
  8. F. Dohmann, Ch. Hartl, 1996, Hydroforming a Method to Manufacture Light-Weight Part, J. Mater. Process. Technol., Vol. 60, No. 1-4, pp. 669-676. https://doi.org/10.1016/0924-0136(96)02403-X
  9. H. K. Yi, Y. H. Moon, J. H. Lee, Y. S. Lee, 2007, Prediction for Forming Limit of Tube Warm Hydroforming based on the Ductile Fracture Criteria, Trans. Mater. Process., Vol. 16, No. 6, pp. 426-431. https://doi.org/10.5228/KSPP.2007.16.6.426
  10. I. K. Lee, J. M. Lee, Y. K. Son, C. J. Lee, B. M. Kim, 2011, Experiment and FE Analysis of Hot Curvature-forming for Aluminum Thick Plate using Grid-typed Hybrid Die, Trans. Mater. Process., Vol. 20, No. 4, pp. 316-323. https://doi.org/10.5228/KSTP.2011.20.4.316
  11. J. S. Kim, K. S. Kim, S. H. Shim, J. G. Eom, M. S. Joun, 2010, Die System for Avoiding Thickness Reduction Along the Bent Corner in Warm Plate Forging of an Axle Housing, Trans. Mater. Process., Vol. 19, No. 8, pp. 447-451. https://doi.org/10.5228/KSTP.2010.19.8.447

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