Rolling process in which a heated workpiece is pressed between rotating rollers to reduce its thickness. The heat causes recrystallization of the grains. Beskrivning The process The work piece [1], usually a sheet blank is preheated to its recrystallization temperature and fed between two rotating rollers [2]. The rollers compress the plate so that its thickness decreases. As the material undergoing this process is recrystallized [3] new grains are created after rolling, which provides more isotropic properties than cold-rolling. Hot Rolling of sheets Process films Advantages and disadvantages In comparison with alternative methods Equiaxial microstructure of grains larger reduction of workpiece possible Requires less power Lower tolerance control Worse mechanical properties Rough surface finish due to oxidation
