Kantemyr I. Improvement of the processes of creating nanostructures in plasma-ion and laser technologies for improving the efficiency of the cutting tool

The object of the research – the processes of obtaining and applying nanostructures (NS) and nanocoating obtained by plasma-ion and laser processing; the purpose of the research – increasing the efficiency of the cutting tool (CT) by developing the physical and technical principles of the process of choosing the type of reinforcement, applying nanocoating and laser modification, forecasting machining modes of CT with a coating and a modified layer; research methods – integrated research method, mathematical and physical modeling, finite element methods, grain size determination (REM-106), determining microhardness (PMT5), experimental design methods; results – a method for selecting the technological parameters (TP) of ion fluxes for obtaining HS and nanocoating of required physical and mechanical characteristics (PMC) was developed; the TP of laser radiation (LR) were obtained, under which NS can be created, and regimes were noted for which the possibility of obtaining NS by the action of thermal stresses; processing modes for machining hardened steel ShKh15 with a CT with NS at which the maximally removed volume is realized during the tool life period were experimentally obtained; novelty – for the first time, the model of interaction of ion fluxes with structural materials took into account the energy of formation of a grain, which improves the accuracy of obtaining TP; new heat sources and effluent were taken into account in the radiation model; for the first time, the possibility of obtaining nanostructures on high-speed steels by laser radiation was experimentally established; degree of implementation of the public company «FED» with economic effect of 350 thousand hryvnias per year due to the increase in the efficiency of the cutting tool; branch – aviation industry.