Actual Problems in Machine Building 2015 No. 2

Actual Problems in Machine Building. 2015. N 2 Innovative Technologies in Mechanical Engineering ____________________________________________________________________ 56 A MATHEMATICAL MODEL OF COMBINED PART MACHINING BY TURNING AND ROLLING Belyaev V. N. 1, 2 , Ph.D. (Engineering), Associate Professor, e-mail: tmp-bti@ya.ru Tatarkin E. Ju. 3 , D.Sc. (Engineering), Professor, Head of Department, e-mail: etatarkin@mail.ru 1 Biysk TechnologyInstitute, 27 Trofimova st., Biysk, 659315, Russian Federation 2 OJC "FRPC "Altai", 1 Socialisticheskaya st., Biysk, 659322, Russian Federation 3 I.I. Polzunov Altai State Technical University, 46 Lenin Prospekt, Barnaul, 656038, Russian Federation Abstract Operational characteristics of parts in many respects depend on properties of surfaces formed in the course of machining. To improve the properties of a part surface various methods of machining are used. One of prospective ways of improving surface properties of parts is the application of antifriction coatings together with surface and plastic deformation of the surface layer. The implementation of such a combined scheme of part machining by turning and rolling makes it possible to apply an antifriction coating on a part, to remove oxide films and other pollution of the surface and to increase machining performance. As a result of the work done a mathematical model describing the process of coating formation on a juvenile surface in combined machining by turning and rolling which can be used for both high-quality research of this process and quantitative calculation of the formed surface layer parameters was developed. Keywords model, surface, antifriction coating