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http://dx.doi.org/10.5228/KSPP.2006.15.2.153

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

Bae, J.G. (포항공과대학교 신소재공학과)
Yang, Y.S. (포항공과대학교 신소재공학과)
Ban, D.Y. (고려강선(주) 기술 연구소)
Park, C.G. (포항공과대학교 신소재공학과)
Publication Information
Transactions of Materials Processing / v.15, no.2, 2006 , pp. 153-157 More about this Journal
Abstract
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.
Keywords
Cold Drawing; Residual Stress; Die Design; Die Series; FEA(finite element analysis); X-ray Diffraction;
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