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FEM analysis of Pearlite Lamella Structure of High Carbon Steel on Drawing Process Conditions

신선가공조건에 따른 고탄소강 선재 Pearlite 층상구조의 유한요소해석

  • 김현수 (부산대학교 정밀기계공학과) ;
  • 배철민 ((주)POSCO 기술연구소 선재연구그룹) ;
  • 이충열 ((주)POSCO 기술연구소 선재연구그룹) ;
  • 김병민 (부산대학교 정밀정형및금형가공연구소)
  • Published : 2005.02.01

Abstract

This paper presents a study on defects in pearlite lamella structure of high carbon steel by means of finite-element method(FEM) simulation. High carbon pearlite steel wire is characterized by its nano-sized microstructure feature of alternation ferrite and cementite. FEM simulation was performed based on a suitable FE model describing the boundary conditions and the exact material behavior. Due to the lamella structure in high carbon pearlite steel wire, material plastic behavior was taken into account on deformation of ferrite and cementite. The effects of many important parameters(reduction in area, semi-die angle, lamella spacing, cementite thickness) on wire drawing process can be predicted by DEFORM-2D. It is possible to obtain the important basic data which can be guaranteed in the ductility of high carbon steel wire by using FEM simulation.

Keywords

Pearlite;FEM;Lamella Spacing;Wiredrawing;High Carbon Steel

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