Kryvoruchko D. An increase of finish operation efficiency by means of analytical modeling of tool-workpiece force interaction

A model of tool-workpiece interaction during the cutting with continuously varying undeformed chip thickness within the value of tool edge radius as well as calculation algorithm and respective software have been developed in this thesis. Stress and strain are determined with aid of slip line method. The source data are mechanical properties of workpiece material, tool geometry and cutting conditions. The model validation has shown a satisfactory correspondence between calculated and experimental data. The hypothesis of buldge formation mechanics, values of residual force and minimal undeformed chip thickness, which allows efficient cutting process, are the main results of this research. Its utilization during development of manufacturing technology can result in decrease of power-consumption of unsteady-state finish cutting operations, in increase of tool life and quality of machined surface.