Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Hydro-forming and Simulation of Cross Member Parts for Automotive Engine Cradle

차량 엔진크레들용 크로스멤버 부품의 하이드로-포밍가공 및 해석

  • Kim, Kee-Joo (School of Automobile Engineering, Seojeong College) ;
  • Lee, Yong-Heon (Department of Mechatronics Engineering, Hanyang University) ;
  • Bae, Dae-Sung (Department of Mechatronics Engineering, Hanyang University) ;
  • Sung, Chang-Won (School of Automobile Engineering, Seojeong College) ;
  • Baik, Young-Nam (Department of Mechanical Engineering, Kyung Hee University) ;
  • Sohn, Il-Seon (School of Automobile & Mechanical Engineering, Osan College)
  • 김기주 (서정대학 자동차과) ;
  • 이용헌 (한양대학교 메카트로닉스공학과) ;
  • 배대성 (한양대학교 메카트로닉스공학과) ;
  • 성창원 (서정대학 자동차과) ;
  • 백영남 (경희대학교 기계공학과) ;
  • 손일선 (오산대학 자동차기계계열 성장동력특성화사업단)
  • Published : 2009.03.01
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Abstract

The environment and energy related problem has become one of the most important global issues in recent years. One of the most effective ways of improving the fuel efficiency of automobiles is the weight reduction. In order to obtain this goal the hydroforming technology has been adapting for the high strength steel and its application is being widened. In present study, the chassis components (mainly cross members of engine cradle) simulation and development by hydroforming technology to apply high strength steel having tensile strength of 440 MPa grade is studied. In the part design stage, it requires feasibility study and process design aided by CAE (Computer Aided Design) to confirm hydroformability in details. Overall possibility of hydroformable chassis parts could be examined by cross sectional analyses. Moreover, it is essential to ensure the formability of tube material on every forming step such as pre-bending, performing and hydroforming. In the die design stage, all the components of prototyping tool were designed and interference with press was investigated from the point of geometry and thinning.

Keywords

References

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