OBRABOTKAMETALLOV MATERIAL SCIENCE Том 23 № 3 2021 EQUIPMEN . INSTRUM TS Vol. 6 No. 1 2024 Current time is displayed in the dark background fi eld, the time reference point is fi xed. The reverse or direct polarity current pulse duration is displayed in the light background fi eld. As it can be seen from the readings, set duration of the direct polarity current pulse is 10 s, duration of the reverse polarity current pulse is 5 s. With the grinding wheel movement along the Z axis programmed as 10 mm and 5 mm at a speed of 1 mm×s−1, time for movement is also equal to 10 s and 5 s. Thus, the machine’s CNC system and current polarity switching control system were timed. Conclusion The investigation results demonstrate that using the developed hardware and software package, it is possible to time the machine’s CNC system that controls the driven elements operation and the current polarity switching automatic control system during electrochemical diamond grinding, thus, making a considerable contribution to enhanced performance of CNC machines. It is estimated that the fi eld of future investigation is in fi ne-tuning of electrochemical diamond grinding process with current polarity alternation, using CNC machines and developed hardware and software package for automatic control as well as the package upgrade for other types of mixed processing. References 1. KozlovA.M.Opredelenieparametrovrabochei poverkhnosti abrazivnogo instrumentanaosnovemodelirovaniya [Determination of parameters of the working surface of an abrasive tool based on modeling]. Izvestiya vysshikh uchebnykh zavedenii. Mashinostroenie = Proceedings of Higher Educational Institutions. Маchine Building, 2005, no. 1, pp. 51–55. 2. Kozlov A.M., Bolgov D.V. Modelirovanie sovmeshchennoi abrazivnoi obrabotki [Modelling of fetch abrasive fi ltering]. Fundamental’nye i prikladnye problemy tekhniki i tekhnologii = Fundamental and Applied Problems of Engineering and Technology, 2010, no. 2 (280), pp. 50–53. 3. Popov A.Y., Rechenko D.S., Averkov K.V., Sergeev V.A. High-speed grinding of ZhS6-K high-temperature nickel alloy. Russian Engineering Research, 2012, vol. 32 (5–6), pp. 511–512. DOI: 10.3103/S1068798X12050176. 4. Rechenko D.S., Popov A.Y., Titov Y.V., Balova D.G., Gritsenko B.P. Ultra-high-speed sharpening and hardening the coating of carbide metal-cutting tools for fi nishing aircraft parts made of titanium alloys. Journal of Physics: Conference Series, 2019, vol. 1260 (6), p. 062020. DOI: 10.1088/1742-6596/1260/6/062020. 5. Popov V., Rychkov D., Arkhipov P. Defects in diamonds as the basic adhesion grinding. MATEC Web of Conferences, 2017, vol. 129, p. 01003. DOI: 10.1051/matecconf/201712901003. 6. Soler Ya.I., Kazimirov D.Yu., Prokop’eva A.V. Optimizing the grinding of high-speed steel by wheels of cubic boron nitride. Russian Engineering Research, 2007, vol. 27 (12), pp. 916–919. 7. Roshchupkin S., Kharchenko A. Method of building dynamic relations, estimating product and grinding circle shape deviations. MATEC Web of Conferences, 2018, vol. 224, p. 01001. DOI: 10.1051/matecconf/201822401001. 8. Bratan S., Roshchupkin S., Chasovitina A. The correlation of movements in the technological system during grinding precise holes. Materials Science Forum, 2021, vol. 1037, pp. 384–389. DOI: 10.4028/www.scientifi c.net/ MSF.1037.384. 9. Vasil’ev E.V., Popov A.Y., Lyashkov A.A., Nazarov P.V. Developing a machining strategy for hard-alloy polyhedral inserts on CNC grinding and sharpening machines. Russian Engineering Research, 2018, vol. 38 (8), pp. 642–644. DOI: 10.3103/S1068798X18080166. 10. Vasil’ev E.V., Popov A.Y. Renovation of hard-alloy end mills on numerically controlled grinding machines. Russian Engineering Research, 2014, vol. 34, pp. 466–468. DOI: 10.3103/S1068798X14070144. 11. Borisov M.A., Lobanov D.V., YanyushkinA.S., Skeeba V.Yu. Investigation of the process of automatic control of current polarity reversal in the conditions of hybrid technology of electrochemical processing of corrosion-resistant steels. Obrabotka metallov (tekhnologiya, oborudovanie, instrumenty) = Metal Working and Material Science, 2020, vol. 22, no. 1, pp. 6–15. DOI: 10.17212/1994-6309-2020-22.1-6-15. (In Russian). 12. Bratan S., Bogutsky B., Roshchupkin S. Development of mathematical model of material removal calculation for combined grinding process. Proceedings of the 4th International conference on industrial engineering ICIE 2018. Cham, Springer, 2019, pp. 1759–1769. DOI: 10.1007/978-3-319-95630-5_189.
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