Manufacturing Technique on the U Type Draw-Bending of Inner Groove Tube

Inner groove tube의 U형 Draw-Bending 가공기술에 관한 연구

  • 강흥식 (충남대학교 대학원 기계공학과) ;
  • 김동성 (한국기계연구원 신교통시스템그룹) ;
  • 허신 (한국기계연구원 신교통시스템그룹) ;
  • 홍성인 (충남대학교 기계공학과)
  • Published : 2003.05.01

Abstract

The purpose of this study is to investigate the manufacturing technique on the U type Draw-Bending of inner groove tube. The U type tube requires the quality of product that satisfy sufficient conditions for a heat exchanger. The mandrel components act the important roles that prevent wrinkles and keep the shape of cross section of bended tube at bending process. We performed the FEM simulation using LS-DYNA software and the bending test of inner groove tube and then, compared bending simulation with bending test results about mandrel ball diameter, mandrel position and optimal clearance between mandrel and tube.

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