Abstract
The present work is a contribution in improving the hydrodynamic method proposed by Li et al. (Steel Res Int 87(9999) 88:2053–2059, 2016; Int J Adv Manuf Technol. Springer-Verlag, London, 2016) used to predict the pressures and the rolling speeds during hot rolling of aluminum strips. The hydrodynamic model gives good prediction. However, it is based on empirical coefficients which must be identified for each rolling case. Therefore, a critical analysis of the Si Li’s method has been first made and then a methodology for improving it has been presented. The improvement consists in coming out of the empiric coefficients and considering the variation of viscosity as a function of pressures. Finite element simulations have been conducted to validate the improved method. Much reliable results have been obtained that are in good agreement with the experimental data. The proposed approach is rapid and much easier to use within the industrial application.
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Acknowledgements
The authors would like to thank the rolling company of SIDER in Annaba, Algeria, for the fructuous industrial information.
Funding
This work received financial support from the Algerian general direction of research (DGRSDT): Direction General de la Recherche Scientifique et Technologique, under the PRFU project code A24N01UN230120180011.
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All authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by Mimoune Derrez, Zaaf Mohamed, and Amirat Abdelaziz. The first draft of the manuscript was written by Mimoune Derrez, and all authors commented on the previous versions of the manuscript. All authors read and approved the final manuscript.
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Mimoune, D., Zaaf, M. & Amirat, A. Contribution to improving hydrodynamics method for hot strip rolling application. Int J Adv Manuf Technol 122, 4165–4178 (2022). https://doi.org/10.1007/s00170-022-10042-4
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DOI: https://doi.org/10.1007/s00170-022-10042-4