Abstract
In this paper, an inverse analysis technique is used to obtain the flow curve of materials in a hot rolling finishing mill. This technique is based on minimization of the differences between the experimental and computed values. The flow curves and the friction coefficients at roll/work-piece interface are derived from two different models. Model I is based on simple slab method of analysis. Model II is based on a modified slab method in which the effect of shear stress in calculating the rolling force and torque is taken into account. It is shown that the developed inverse analysis technique is reliable and can simultaneously determine a more accurate flow stress for the material as well as a better estimation for the interface friction factors.
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Aghasafari, P., Salimi, M. & Daraei, A. Flow Stress Evaluation in Hot Rolling of Steel. J. of Materi Eng and Perform 23, 2819–2828 (2014). https://doi.org/10.1007/s11665-014-1049-x
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DOI: https://doi.org/10.1007/s11665-014-1049-x