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A scheme for the promotion of viscous lubrication in wire drawing is analyzed. Lubricant pressure is built up by means of close tolerance tube installed in front of the die. In the die, plasticity is maintained by the combination of fluid pressure and wire tension. In the analysis presented here the lubricant flow rate and film thickness variation in the die are solved for as well as the necessary length of pressure tube. Pressure and temperature effects on the lubricant viscosity and strain hardening effects on the wire metal are included in the analysis. Presented as an American Society of Lubrication Engineers paper at the Lubrication Conference held in Chicago, Illinois, October 1961.
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Osterle et al. (1962) studied this question.
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