Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Evolution of Strain States and Microstructures During Three-roll Screw Rolling of Copper Rods

Three-roll Screw Rolling 공정 시 동봉재의 변형상태와 미세조직의 발달

  • 김상현 (고려대학교 신소재 공학부) ;
  • 박은수 (고려대학교 신소재 공학부) ;
  • 김휘준 (한국생산기술 연구원 신기능 소재팀) ;
  • 배정찬 (한국생산기술 연구원 신기능 소재팀) ;
  • 허무영 (고려대학교 신소재 공학부)
  • Published : 2008.02.01
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Abstract

In order to investigate the evolution of strain states during screw rolling, the samples of copper rod were rolled in a three-roll screw rolling mill. Microstructure observations and hardness measurements were carried out for examining the deformation history during screw rolling. The finite element method(FEM) was employed to calculate the evolution of strain states during screw rolling. The strain state in the roll gap is quite inhomogeneous through the rod thickness layers. It turned out that shear strain gradients through the thickness layers are reduced by applying a higher reduction.

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References

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