Аpproach to quality of cylindrical products received rotary drawing with wall thinning and separation of deformation zone
The analysis of kinematics relations for the flow of material, the stress and strain state, power modes of rotary drawing with thinning walls of cylindrical parts by tapered roller are presented. The features of the calculation of the power modes for 3-roller scheme of rotary drawing of cylindrical parts with strain division are established. Satisfactory agreement between theoretical calculations and experimental data on the power modes is revealed. Features rotary drawing process with strain division for the manufacture of complex shells with variable wall thickness and the presence of ring centering thickening of steel 10 are considered. The implementation of the proposed technological process of manufacturing of this type of parts in the industry allowed to provide their given quality, to reduce labor intensity and specific quantity of metal of parts, to reduce the time pre-production of new products.