Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Prediction Model of Surface Residual Stress for Multi-Pass Drawn High Carbon Steel Wire

고탄소강 다단 신선 와이어의 표면 잔류응력 예측모델

  • 김대운 (부산대 대학원 정밀기계공학과) ;
  • 이상곤 (부산대 PNU-IFAM 국제공동연구소) ;
  • 김병민 (부산대 기계공학부) ;
  • 정진영 (고려제강 기술개발연구원) ;
  • 반덕영 (고려제강 기술개발연구원) ;
  • 이선봉 (계명대 기계.자동차공학부)
  • Received : 2010.02.09
  • Accepted : 2010.05.04
  • Published : 2010.07.01
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Abstract

During the multi-pass wire drawing process, wires suffer a great amount of plastic deformation that is through the cross-section. This generates tensile residual stress at surface of drawn wires. The generated residual stress on surface is one of the problems for quality of wires so that prediction and reduction of residual stresses is important to avoid unexpected fracture. Therefore, in this study, the effect of process variables such as semi-die angle, bearing length and reduction ratio on the residual stress was evaluated through Finite Element Analysis. Based on the results of the Analysis, a prediction model was established for predicting residual stress on the surface of high carbon steel(AISI1072, AISI1082). To identify the effectiveness of the proposed model, X-ray diffraction is used to measure the residual stresses on the surface. As the result of the comparison between calculated residual stresses and measured residual stresses, the model could be used to predict residual stresses in cold drawn wire.

Keywords

References

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  1. Prediction of Axial Residual Stress in Drawn High-Carbon Wire Resulting Due to Increase in Surface Temperature vol.34, pp.10, 2010, https://doi.org/10.3795/KSME-A.2010.34.10.1479