Contact stresses in the deformation zone and average pressure during asymmetric rolling of metal powders

Abstract

Consideration is given to the contact normal stresses in the deformation zone on the drive rolls of different diameters rotating at the same angular speed during asymmetric rolling of iron and electrolytic titanium powders, as well as aluminum granules. The ratio of roll diameters is 1.12 to 1.42. It is established that the normal contact stresses on both rolls are much lower than those during conventional (symmetric) rolling. It is shown that during asymmetric rolling, the contact stress on the larger roll is lower than the stress on the smaller roll, regardless of the material being rolled and the density of the rolled product.