Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Analysis of Hydroforming Process for an Automobile Lower Arm by FEM

유한요소법을 이용한 자동차 로어암의 액압성형 해석

  • 김정 (부산대학교 항공우주공학과 대학원) ;
  • 장유철 (부산대학교 항공우주공학과 대학원) ;
  • 강성종 (대구가톨릭대학교 기계자동차공학부) ;
  • 강범수 (부산대학교 항공우주공학과)
  • Published : 2001.12.01
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Abstract

Tubular hydroforming has attracted increased attention in the automotive industry recently. In this study, a professional finite element program for analysis and design of tube hydroforming processes, has been developed, called HydroFORM-3D, which is based on a rigid-plastic model. With the developed program HydroFORM-3D, the hydroforming process for an automobile lower arm is analyzed and designed. The manufacturing process for a lower arm consists of tube bending, preforming, and final hydroforming. To accomplish successful hydroforming process design, thorough investigation on proper combination of process parameters such as internal hydraulic pressure, axial feeding, and tool geometry is required. This paper describes the influences of forming conditions on the hydroforming of a lower arm by using simulation to predict strain and tube shape during bending, preforming, and final hydroforming processes.

Keywords

References

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