Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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The Effects of Die Design and Die Series on the Surface Residual Stress of Cold Drawn Eutectoid Steel Wire

고탄소강 와이어의 냉간 인발시 다이 디자인과 다이 시리즈가 표면 잔류 응력에 미치는 영향

  • 배종구 (포항공과대학교 신소재공학과) ;
  • 양요셉 (포항공과대학교 신소재공학과) ;
  • 반덕영 (고려강선(주) 기술연구소) ;
  • 박찬경 (포항공과대학교 신소재공학과)
  • Published : 2005.10.01
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Abstract

In this study, the die design and die series on the surface residual stress of cold drawn eutectoid steel wire has been investigated. Test pieces were fabricated using die series with different mean and final reduction ratio. Surface residual stresses in the axial direction were measured by X-ray diffraction, Broker's 2-dimensional GADDS system. Results were compared with stress profiles which were calculated by 3D and 2D finite element simulation, Hibbitt's ABAQUS 6.4 program in Finite Element Analysis. By means of 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.

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