Improvement of Connection Force in Hydro-Embedding Process Through the Rotational Piercing of the Connection Element

하이드로 임베딩시 연결요소의 회전을 통한 체결력 개선 연구

  • 김봉준 (부산대학교 정밀기계공학과) ;
  • 김동규 (성우하이텍 기술연구소) ;
  • 김동진 (포항제철 기술연구소) ;
  • 문영훈 (부산대학교 정밀기계공학과)
  • Published : 2006.12.01


To increase the applicability and productivity of hydroforming process, hydro-embedding process was developed by combining the hydro-forming process with embedding process simultaneously. It is necessary in the automotive parts to form hollow bodies with connection elements which combine one part with another. The hydro-embedding process is embedding the connection element hydraulically during the operating steps of the hydroforming. In this study, technique of rotational piercing is added on the existing hydro-embedding to increase the connection force of hydro-embedded element. To estimate the feasibility of new trial process, integrated researches on the hydro-embedding process technology have been performed by analyzing the deformed mode of the tubes and the optimal process parameters for various shapes of the connection elements.


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