The Evaluation and Relaxation of Residual Stress of Steel Cord

Steel Cord 선재의 판류응력 평가 및 완화에 관한 연구

  • 이상곤 (부산대 대학원 정밀기계공학과) ;
  • 황원호 (부산대 대학원 정밀기계공학과) ;
  • 김병민 (부산대 정밀정형및금형가공연구소) ;
  • 배철민 (POSCO 선재연구그룹) ;
  • 이충열 (POSCO 선재연구그룹)
  • Published : 2006.05.11

Abstract

Recently the quality improvement of the steel cord product is demanded by the tire market. After wire drawing process, produced residual stresses have a harmful effect on the durability of the wire and become the cause which decreases the quality of the product. Therefore, to improve the quality of the steel cord product, the research regarding the method of residual stress relaxation is necessary. To evaluate the quality of the drawn wire, it is important to measure the residual stress, because the residual stress decides a variety of the quality level which is demanded in the drawn wire. This study proposed a residual stress relaxation method in the drawn wire using FE analysis. The validity of the analysis results was verified by nanoindentation test.

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