DOI: 10.18503/1995-2732-2024-22-3-178-187
Abstract
The research is relevant due to a high demand for rolled aluminum alloys by the industry, especially after launching new facilities for the production of such rolled products in Russia. The research was aimed at establishing the difference in the stress and strain state of the metal in two options of the rolling process: factoring and no factoring into the softening process. It has been noted that aluminum differs from other metals in its high stacking fault energy, inhibiting the development of recrystallization processes; therefore, these processes in multi-pass forming process flow charts for the metal and its alloys becomes unobvious. To analyze the results, the authors used the finite element method implemented in the DEFORM software module. The article presents the conducted finite-difference modeling of the hot rolling process of an aluminum alloy slab. Seven rolling passes were analyzed. Throughout these passes, the deformation zone remains high. Main attention is paid to the seventh rolling process, where the accumulation of deformations should be the greatest. The problem statement included two options. One option is based on the hypothesis of maintaining the level of work hardening from previous passes. The second option involved the softening process in pauses between passes. The article describes the distribution of strains and stresses in the deformation zone during rolling. The authors prepared diagrams of the distribution of contact pressure along the length of the deformation zone. The strain distribution in the first option of the calculations was concluded to be more uneven; this conclusion is novel. The results were compared with the production data of the monitoring system. The second option of the calculations showed the best convergence, but a note was made that this applied to the deformation scheme under study.
Keywords
rolling, aluminum alloy, mechanical stress, plastic deformation, simulation, recrystallization
For citation
Loginov Yu.N., Nepryakhin S.O., Isyakaev K.T. Simulation of Plate Rolling of the Aluminum Alloy with Options of Softening Processes. Vestnik Magnitogorskogo Gosudarstvennogo Tekhnicheskogo Universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University]. 2024, vol. 22, no. 3, pp. 178-187. https://doi.org/10.18503/1995-2732-2024-22-3-178-187
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