ElAr :: Перегляд за автором "Popova, O."

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Modeling laser processing of materials
(ХНАДУ, 2023) Afanasieva, O. V.; Lalazarova, N.; Chyhrin, A.; Popova, O.
In the paper, modeling of the interaction of laser radiation with substance is carried out us-ing the example of acrylic glass with the help of COMSOL Multiphysics 5.5 software package. For a long time, the complexity of the phenomena occurring during the laser impact on the material made it possible to select processing modes mainly experimentally. Thanks to the programs working with the finite element method, a model of the passage of laser radiation through a block of dielectric material was created in this work. A graphic distribution of heat on the surface was obtained, as well as an iso-therm of the depth of heat distribution inside the material. The possibility of modeling laser processing of materials by the finite element method has been proven
Ways of increasing the machinability of high-strength cast iron
(УкрДУЗТ, 2024) Afanasieva, O. ; Lalazarova, N. ; Komarova, G. ; Popova, O.
Industry is in need of high-strength cast irons with a high level of operational properties. The problem is that such cast iron is characterized by a low level of machinability by cutting. The work presents the results of research in the following areas of improving machinability: heat treatment of cast iron, machining and hardening of hard alloy tools, processing using a polymercontaining lubricating and cooling fluid.