Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Prediction of Surface Residual Stress of Multi-pass Drawn Steel Wire Using Numerical Analysis

수치해석을 이용한 탄소강 다단 신선 와이어 표면 잔류응력 예측

  • 이선봉 (계명대학교 기계자동차공학과) ;
  • 이인규 (한국생산기술연구원 극한가공기술그룹) ;
  • 정명식 (한국생산기술연구원 극한가공기술그룹) ;
  • 김병민 (부산대학교 기계공학부) ;
  • 이상곤
  • Received : 2017.03.20
  • Accepted : 2017.05.18
  • Published : 2017.06.01
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Abstract

The tensile surface residual stress in the multi-pass drawn wire deteriorates the mechanical properties of the wire. Therefore, the evaluation of the residual stress is very important. Especially, the axial residual stress on the wire surface is the highest. Therefore, the objective of this study was to propose an axial surface residual stress prediction model of the multi-pass drawn steel wire. In order to achieve this objective, an elastoplastic finite element (FE) analysis was carried out to investigate the effect of semi-die angle and reduction ratio of the axial surface residual stress. By using the results of the FE analysis, a surface residual stress prediction model was proposed. In order to verify the effectiveness of the prediction model, the predicted residual stress was compared to that of a wire drawing experiment.

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References

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