Simulation of thermal stress in the hot rolling process and its effect on roller failure
Subject Areas : Journal of New Applied and Computational Findings in Mechanical Systems
Amirheshmat Khedmati Bazkiaei
1
,
Ali Sozangar
2
1 - Department of Mechanical Engineering. Islamic Azad University. Sousangerd. Iran
2 - Mechanical engineering, Iran National Steel Industrial Group
Keywords: Rolling process, finite elements, fracture,
Abstract :
The rolling process is actually the shaping of steel, in which rollers are used to change the shape, improve the mechanical properties of the material, and eliminate the uniformity of the metal. Steel can be rolled in two forms, hot and cold, each of which has its characteristics. The purpose of this research was to investigate the effect of thermal stress during the rolling process on the failure of rollers using finite element simulation. This construction is non-linear and it is hypothesized that the roller is isotropic, without cracks and thermal strain, and the temperature of the environment is similar to the room. In this research, the effect of basic and accurate cooling during the rolling process has also been investigated. The results obtained in six hot rolling are created according to the highest number of rollers and the number of rollers in the rollers, which is shown and the extent of the role of thermal stresses on the failure of the rollers is stated