The prospects for radial shear rolling in the lean production of small-diameter alloy-steel and alloy rods are considered. Specific applications of this technology are discussed: for example, in the automatic thermomechanical treatment of long rods with control of the deformation trajectory; in small-scale production of long VT1-0 alloy rods in the submicrocrystalline and nanostructured states; and in the repair of pump rods.

A mathematical model of radial-shear rolling of the bars of the VT6 alloy is constructed by the finite element method using LS-DYNA software. The stress-strain state in bars during rolling at a...

Formulas for calculating the trajectory deformation coefficients during radial-shear rolling are presented in an analytical form, which make it possible to estimate the gradient of the deformation-kinematic state of the metal under conditions of helicoidal flow. The layer-by-layer nature of the change in the metal flow rate, coefficients, intensity, and deformation schemes has been established. An expression for evaluating the rotational deformation is obtained. The basic schemes for setting up symmetrical three-roll calibers used in the RSR minimills are presented. The technical characteristics of the modern line of RSR minimills designed by MISIS are presented. The basic arrangement of mills 30-70 and 90-220 is described, which significantly expands the dimensional range of rolling diameters on RSR minimills. Effective technological solutions based on RSR, implemented in practice, are discussed. In particular, in the field of creating low-cost technologies for recycling and secondary use of lengthy machine-building parts taken out of service. On the example of minimill 90-220 of a special design, the possibility of using RSR for preliminary deformation of continuously cast billets under the conditions of an operating industrial PRP-160 with a three-roll rolling mill is shown.