소성∙가공 (Transactions of Materials Processing)

  • 제15권2호
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  • Pages.153-157
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  • 2006
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  • 1225-696X(pISSN)
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  • 2287-6359(eISSN)
한국소성∙가공학회 (The Korean Society for Technology of Plasticity and materials processing)
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고탄소강 와이어의 냉간 인발 시 다이 디자인과 다이 시리즈가 표면 잔류 응력에 미치는 영향

The Effects of Die Design and Die Series on the Surface Residual Stress of Cold Drawn Eutectoid Steel Wire

  • 배종구 (포항공과대학교 신소재공학과) ;
  • 양요셉 (포항공과대학교 신소재공학과) ;
  • 반덕영 (고려강선(주) 기술 연구소) ;
  • 박찬경 (포항공과대학교 신소재공학과)
  • 발행 : 2006.03.01
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초록

In this study, the die design and die series on the surface residual stress of cold drawn eutectoid steel wire have been investigated. Test pieces were fabricated using die series with different mean and final reduction ratios. Surface residual stresses in the axial direction were measured by X-ray diffraction, Bruker's 2-dimensional GADDS system. The results were compared with stress profiles that were calculated by 3D and 2D finite element simulations, ABAQUS 6.4 program in finite element analysis(FEA). By means of the FEA method, optimal die shape considering delta-parameter were induced and applied in order to determine die sequence designs. Balance of the drawing stresses was also introduced to optimize die sequence.

키워드

참고문헌

  1. M. Dollar, I. M. Bernstein, A. W. Thompson, M.Shemenski, 1988, Influence of Deformation Substructure on Flow and Fracture of Fully Pearlitic Steel, Acta Metall., Vol. 36, pp. 311-320 https://doi.org/10.1016/0001-6160(88)90008-9
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  6. K. Katagri, 1999, Effects of Post-Drawing Treatments on the Fatigue Strength of Eutectoid Steel Wire, Fatigue Fracture Engng. Mater. Struct., Vol. 22, pp. 753-760 https://doi.org/10.1046/j.1460-2695.1999.00212.x
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피인용 문헌

  1. Effect of Back Tension in Multi-pass Drawing on the Central Bursting Defect vol.21, pp.5, 2012, https://doi.org/10.5228/KSTP.2012.21.5.291