Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Development of Automotive Door Inner Panel using AA 5J32 Tailor Rolled Blank

AA 5J32 Tailor Rolled Blank를 이용한 차량용 Door Inner Panel 개발

  • 전성진 (부산대학교 정밀기계공학과) ;
  • 이문용 ((주)성우하이텍 기술연구소) ;
  • 김병민 (부산대학교 정밀기계공학과)
  • Received : 2011.09.08
  • Accepted : 2011.09.28
  • Published : 2011.11.01
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Abstract

TRB(Tailor Rolled Blank) is an emerging manufacturing technology by which engineers are able to change blank thickness continuously within a sheet metal. TRB door inner panels with required larger thicknesses can be used to support localized high loads. In this study, the aluminum alloy 5J32 TRB sheet is used for a door inner panel application. The TRB material properties were varied by using three heat treatment conditions. In order to predict the failure of the aluminum TRB during simulation, the forming limit diagram, which is used in sheet metal forming analysis to determine the criterion for failure, was investigated. Full-field photogrammetric measurement of the TRB deformation was performed with an ARAMIS 3D system. A FE model of the door inner panel was created using Autoform software. The material properties obtained from the tensile tests were used in the numerical model to simulate the door inner of AA 5J32 for each heat treatment condition. After finite element analysis for the evaluation of formability, a prototype front door panel was manufactured using a hydraulic press.

Keywords

References

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  1. Crashworthiness design of vehicle structure with tailor rolled blank vol.53, pp.2, 2016, https://doi.org/10.1007/s00158-015-1315-z
  2. Springback Prediction of Tailor Rolled Blank in Hot Stamping Process by Partial Heating vol.25, pp.6, 2016, https://doi.org/10.5228/KSTP.2016.25.6.396
  3. Limits Considering the Deformation Characteristics of Tailor Rolled Blank during Hot Stamping vol.23, pp.6, 2014, https://doi.org/10.5228/KSTP.2014.23.6.351