신선 시 선재의 잔류응력 완화 방법에 관한 연구 및 나노 압입 시험을 이용한 잔류응력 평가

A Study on the Method of Residual Stress Relaxation during Wire Drawing and Evaluation of Residual Stress Using Nano Indentation Test

  • 고대철 (부산대학교 동남권부품소재산학협력혁신연구소) ;
  • 황원호 (부산대학교 대학원 정밀기계공학화) ;
  • 이상곤 (부산대학교 대학원 정밀기계공학화) ;
  • 김병민 (부산대학교 기계공학부)
  • 발행 : 2006.05.01

초록

Steel cord which is used as reinforcement in car tires is produced by wet-drawing process. Recently the quality improvement of the steel cord product is demanded by the tire market. After cold 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 cold drawn wire, it is very important to measure the residual stress, because the residual stress decides a variety of the quality level which is demanded in the cold drawn wire. The aim of this study is to propose residual stress relaxation method in the drawn wire using FE-analysis. The validity of the analysis results was verified by Nano indentation test.

키워드

참고문헌

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