Development and Computer Simulation of the New Combined Process for Producing a Rebar Profile

The study presents results of computer simulation by finite elements method a new metal forming process combining the deformation billet with round cross-section on radial-shear rolling mill and subsequent twisting in die specific design. To analyze efficiency processing, main parameters stress–strain state are considered: effective strain, stress, average hydrostatic pressure, Lode–Nadai coefficient. maximum value strain up to 13.5 is achieved when screw profile forming, which indicates an intensive refinement initial structure billet. During combined process, nature changes transverse direction from axis rotation surface. central area under action tensile stresses. In peripheral part, compressive stresses grow. surface area, coefficient 0.1 approximately, high level shear strain.