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Документ Reducing the energy capacity of diamond spark grinding by application of solid lubricant(Editura "Academica Brâncuşi", 2020) Gutsalenko, Yu. G.; Iancu, Cătălin; Rudnev, Alexander ; Strelchuk, R. M.Diamond spark grinding is known for lower thermo-mechanical stress of mass micro-cutting in the processing zone compared to conventional diamond grinding. This made it possible to propose the organization of the process using the minimum lubrication methodology as an alternative to the conventional jet watering of the treatment zone with water-based lubricating and cooling technological agents. On the example of using an equilibrium mixture of stearin and sebacic acid, it is shown that the introduction of a solid lubricant reduces the ene rgy intensity of diamond spark grinding in comparison with its support with conventional jet watering. The main explanation for this is to reduce the tribological and thermo-mechanical load on the cutting grains and the working surface of the grinding wheel as a whole due to the application of solid lubricant directly to the working contact surface of the tool. The results of the performed experiments make it possible to predict thermo-physically and physic-mechanically intensified schemes of defect-free diamond spark grinding of hard alloys and other difficult-to-machine materials, in particular, with increased contact pressures or cutting speeds. The development of oriented material science practical recommendations in this direction involves additional research with control of the physical quality of the treated surface.Документ Application of minimum lubrication methodology for diamond spark grinding(Editura "Academica Brâncuşi", Târgu Jiu, 2020) Gutsalenko, Yury; Iancu, Cătălin; Rudnev, Alexander; Strelchuk, R. M.The electric discharge bases of the technological advantages of diamond spark grinding make it possible to consider this processing method among the environmentally promising in nature. A decrease in the thermo-mechanical tension of mass micro-cutting in the zone of diamond spark grinding, which is ensured by the development of its working relief, supported by the action of electric discharges on the bond of the wheel, also makes it possible to consider approaches to organizing this process using the minimum lubrication methodology. The paper presents and summarizes the experimental results of using a number of solid lubricants, gives practical recommendations and defines the tasks of further research. Work in this direction is focused on reducing the use of water in servicing industrial needs, which is an urgent global environmental challenge to the development of civilization and meets the modern technocratic strategies of the European Union (Industry 4.0), Japan (Society 5.0), China (Made in China 2025) and other leading world economies.Документ Исследование и анализ оптимального состава твёрдого смазочного материала при алмазно-искровом шлифовании твёрдых сплавов(НТУ "ХПИ", 2018) Агу Коллинз Агу; Узунян, Матвей ДаниловичПредставлены результаты исследований оптимального варианта твёрдого смазочного материала при алмазно-искровом шлифовании твёрдых сплавов. Показано, что использование специального состава смазки вместо жидкости поливом за счёт адсорбционного эффекта обеспечивает понижение свободной поверхностной энергии, вызывая снижение хрупкой прочности твёрдых сплавов и работу диспергирования.