OBRABOTKAMETALLOV Vol. 27 No. 1 2025 17 TECHNOLOGY References 1. Vereshchaka A.S., Lierat F., Dyubner L. Analiz osnovnykh aspektov problemy ekologicheski bezopasnogo rezaniya [Analysis of the main aspects of the problem of environmentally safe cutting]. Rezanie i instrument v tekhnologicheskikh sistemakh [Cutting and tool in technological systems]. Kharkiv, 2000, iss. 57, pp. 29–34. 2. Khudobin L.V., Zhdanov V.F. O vozmozhnosti aktivatsii SOZh impul’snymi elektricheskimi polyami [On the possibility of activation of coolant by pulsed electric fi elds]. Chistovaya obrabotka detalei mashin [Finishing of machine parts]. Saratov, 1980, pp. 49–53. 3. Maddamasetty A., Revuru S., Sitaramaraju A. Performance evaluation of nanographite-based cutting fl uid in machining process. Materials and Manufacturing Processes, 2014, vol. 29 (5). DOI: 10.1080/10426914.2014. 893060. Investigation of the eff ect of oil-based MWFs with enhanced tribological properties on cutting forces and roughness of the processed surfaces Ervin Umerov 1, 2, a,*, Vladimir Skakun 1, 2, b, Ruslan Dzhemalyadinov 1, 2, c, Yuriy Egorov 2, d 1 Crimean Engineering and Pedagogical University named after Fevzi Yakubov, 8 Uchebnyy side st., Simferopol, 295015, Russian Federation 2 V.I. Vernadsky Crimean Federal University, 4 Academician Vernadsky ave., Simferopol, 295007, Russian Federation a https://orcid.org/0000-0003-3477-2036, Ervin777@yandex.ru; b https://orcid.org/0000-0003-0656-7852, vladimir.skakun.92@list.ru; c https://orcid.org/0000-0003-3319-3542, rus.dzhemalyadinov@mail.ru; d https://orcid.org/0000-0003-4990-9998, yuriyegorov@cfuv.ru Obrabotka metallov - Metal Working and Material Science Journal homepage: http://journals.nstu.ru/obrabotka_metallov Obrabotka metallov (tekhnologiya, oborudovanie, instrumenty) = Metal Working and Material Science. 2025 vol. 27 no. 1 pp. 6–19 ISSN: 1994-6309 (print) / 2541-819X (online) DOI: 10.17212/1994-6309-2025-27.1-6-19 ART I CLE I NFO Article history: Received: 16 October 2024 Revised: 26 October 2024 Accepted: 21 November 2024 Available online: 15 March 2025 Keywords: Lubricating and cooling technological means Coeffi cient of friction Cutting forces Roughness Funding The research was carried out with the fi nancial support of the Russian Science Foundation (project No. 24-1220013). ABSTRACT Introduction. One way to enhance the effi ciency of the cutting process is to develop new eff ective compositions of metalworking fl uids (MWFs), which will reduce cutting force and temperature, while increasing the durability of the cutting tool and the quality of the processed surface. One approach to address this challenge is the chemical activation of MWF using additives based on nanoclay minerals, which are characterized by low cost and abundant reserves in-Earth. In this regard, the theoretical rationale for the selection of this additive and its impact on the tribological properties of the MWF is given. The purpose of the work is to determine the eff ect of oil-based additives with nanoclay minerals on reducing the cutting force, as well as improving the quality of the processed surface when drilling corrosion-resistant steel. Research methods. Experimental investigations were conducted during a drilling operation, in which the components of the cutting force were recorded using a three-component dynamometer M-30-3-6k. The aim of the experiment was to determine the eff ect of oil-based MWF containing additives from nanoclay minerals on the component of the cutting force, as well as the roughness of the processed surface. A formula for calculating the friction coeffi cient in the drilling process was derived using mathematical modeling. Results and Discussion. The experimental investigations yielded results demonstrating the eff ectiveness of using oil-based MWF with additives made from nanoclay minerals. Experimental data was obtained for the friction coeffi cient, cutting force component, as well as the roughness of the processed surface during drilling. These results were obtained using the experimental MWF, supplied to the cutting zone. The results of the study showed the eff ectiveness of using the modifi ed MWF compared to traditional compositions. Conclusions. The modifi ed MWF, which includes sunfl ower oil and nanoclay minerals as additives, signifi cantly reduces the friction coeffi cient, cutting force, as well as the roughness of the processed surface, which opens up further prospects for its use in the metalworking industry. For citation: Umerov E.D., Skakun V.V., Dzhemalyadinov R.M., Egorov Y.A. Investigation of the eff ect of oil-based MWFs with enhanced tribological properties on cutting forces and roughness of the processed surfaces. Obrabotka metallov (tekhnologiya, oborudovanie, instrumenty) = Metal Working and Material Science, 2025, vol. 27, no. 1, pp. 6–19. DOI: 10.17212/1994-6309-2025-27.1-6-19. (In Russian). ______ * Corresponding author Umerov Ervin D., Ph.D. (Engineering), Associate Professor Crimean Engineering and Pedagogical University named after Fevzi Yakubov 8 Uchebnyy side st., 295015, Simferopol, Russian Federation Tel.: +7 978 832-72-92, e-mail: Ervin777@yandex.ru
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