On the Mechanics of Wire Drawing

[+] Author and Article Information
C. T. Yang

International Business Machines Corporation, San Jose, Calif.

J. Eng. Ind 83(4), 523-529 (Nov 01, 1961) (7 pages) doi:10.1115/1.3664585 History: Received July 27, 1960; Online December 09, 2011


Split-die technique was adopted to find the coefficient of friction in wire drawing directly from experiment. Simple dynamometers with wire resistance strain gages were used for measuring separating force and drawing force instead of cumbersome equipment used by former researchers. Reasonably good results were obtained. The effect of the land or parallel portion in the die on the coefficient of friction was indicated in the results. Its importance was emphasized. A theoretical equation of the drawing stress with the effect of land considered was derived. Using the coefficient of friction obtained by the split-die method, drawing stresses were calculated from the derived equation. A comparison of the theoretical and experimental drawing stresses was made. Results were tabulated and plotted. It was concluded that including the land in the analysis of wire drawing is important and further research in analyzing the shear deformation must be pursued in order to get a close agreement between theoretical analysis and experimental results.

Copyright © 1961 by ASME
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