Summary
The mean rise in temperature with plastic strain due to the work of plastic deformation, taking account of the temperature-dependence of yield stress, is investigated when conduction effects are neglected and results for one particular example are presented. An adaptation of the well-known Siebel-Karman analysis for sheet rolling is examined, and results for the particular case of rolling a medium carbon steel are given in detail. The temperature-dependent property of the yield stress in cold-rolling at moderate reductions is shown not to have a large effect on factors such as roll-torque, though the actual temperature increase generated is a significant one. Examples are given of how the temperature of the material increases in its passage through the roll gap.
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References
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Lippmann, H., Johnson, W. Temperature development based on technological analysis: Fast rolling as an example. Appl. sci. Res. 9, 345 (1960). https://doi.org/10.1007/BF00382212
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DOI: https://doi.org/10.1007/BF00382212