Abstract
Finishing-hardening treatment of shafts and axles by reversible surface plastic deformation is considered. A finite element model of the stress-strain state of the surface layer of cylindrical parts is constructed by 3D design and computational modeling, taking into account the geometry of the tool. It has been established that a decrease in the profile radius, roller diameter, and billet diameter increases the temporary and residual stresses in the surface layer. The optimal distance between the vertices of a two-radius roller is determined, which ensures the maximum stress state while all other conditions being equal. Keywords: reversible surface plastic deformation, distance between roller vertices, profile radius, temporary and residual stresses, plastic deformation. zsa@istu.edu, nquan6799@gmail.com
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