Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Orientation Prediction of Lamella Structure of High Carbon steel in Wire Drawing

신선가공시 고탄소강 선재 층상구조의 정렬 예측

  • 김현수 (부산대학교 정밀기계공학과) ;
  • 배철민 ((주)POSCO 기술연구소 선재연구그룹) ;
  • 이충열 ((주)POSCO 기술연구소 선재연구그룹) ;
  • 김병민 (부산대학교 정밀정형 및 금형가공연구소)
  • Published : 2005.10.01
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Abstract

The objective of this study was presented with a prediction on the alignment of cementite in pearlite lamella structure of high carbon steel by means of finite-element method(FEM) simulation. Pearlite strcuture was characterized by its nano-sized microstructure feature of alternation ferrite and cementite. FEM simulations were performed based on a suitable FE model describing the boundary conditions and the material behavior. With the alignment of lamella structure in high carbon pearlite steel wire, material plastic behavior was taken into account on plastic deformation and alignment of cementite. The effects of many important parameters(reduction in area, semi-die angle, initial angle of cementite ) on wire drawing process were predicted by DEFORM-2D. As the results, the possibility of wire fracture could be considerably reduced and the productivity of final product could be more increased than before.

Keywords

References

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