Analysis and Process Design of Hot Pipe Bending Process With Small Bending Radius

작은 곡률반경 파이프 벤딩을 위한 열간 파이프 벤딩공정 해석 및 설계

  • 류경희 (부산대학교 정밀기계공학과) ;
  • 김동진 (부산대학교 정밀정형 및 금형가공 연구소) ;
  • 김병민 (부산대학교 정밀정형 및 금형가공 연구소) ;
  • 이동주 ((주)현대중공업)
  • Published : 2001.08.01


The finite element simulation model and the program to calculate the reverse moment have been developed to analyse the stress state and deformation of pipe bending using local induction heating with small bending radius in this study. The reverse moment that is to be applied on the bending arm to control the wall thinning ratio of the bending outside to within a particular value. Even though the demand of pipes with small bending radius is increasing in power plants and ship buildings, the welded elbows are still widely used. The bending process with or without a reverse moment acting on the bending arm has been simulated. The reverse moments calculated from the developed program are in good agreement with the finite element simulations and the experiments.



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