OBRABOTKAMETALLOV Vol. 25 No. 4 2023 133 EQUIPMENT. INSTRUMENTS Performance modeling and multi-objective optimization during turning AISI 304 stainless steel using coated and coated-microblasted tools Satish Chinchanikar a, *, Mahendra Gadge b Vishwakarma Institute of Information Technology, Survey No. 3/4, Kondhwa (Budruk), Pune - 411039, Maharashtra, India a https://orcid.org/0000-0002-4175-3098, satish.chinchanikar@viit.ac.in; b https://orcid.org/0000-0002-8603-8653, Mahendra.gadge@viit.ac.in 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. 2023 vol. 25 no. 4 pp. 117–135 ISSN: 1994-6309 (print) / 2541-819X (online) DOI: 10.17212/1994-6309-2023-25.4-117-135 ART I CLE I NFO Article history: Received: 15 August 2023 Revised: 05 September 2023 Accepted: 09 September 2023 Available online: 15 December 2023 Keywords: AISI 304 Cutting force Tool life Coated tools Surface roughness Multi-objective optimization ABSTRACT Introduction. High-speed machining of stainless steel has long been a focus of research. Due to characteristics such as low thermal conductivity and work hardening, AISI 304 is considered to be a diffi cult material to cut. Machinability indicators provide important information about the effi ciency and eff ectiveness of the machining process, enabling manufacturers to optimize their operations for increased productivity and precision. The purpose of the work. Coated carbide tools are most often used for machining AISI 304 stainless steel. Few studies, meanwhile, have examined the eff ects of pre-and post-treated coated carbide tools when turning these alloys at high speeds. In addition, only a small number of studies have simultaneously optimized the cutting parameters while employing preand post-treated tools. The methods of investigation. The present work comparatively evaluates the performance of coated and coated-microblasted tools during the turning of AISI 304 stainless steel. The tools were PVD-AlTiN coated, PVD-AlTiN coated with microblasting as a post-treatment (coated-microblasted), and MTCVD-TiCN/Al2O3 coated (MTCVD). The experimental-based mathematical models were developed to predict and optimize the turning performance. Results and Discussion. In this study, it is found that PVD-AlTiN coated tools have the lowest cutting forces and surface roughness, followed by PVD-AlTiN coated-microblasted and MTCVD-TiCN/Al2O3 coated tools. However, there is no signifi cant diff erence observed in these responses for coated and coated-microblasted tools. It is found that the cutting forces increased with feed and depth of cut while decreasing with cutting speed. However, this eff ect is signifi cant for MTCVD-coated tools. On the other hand, higher tool life is observed with MTCVD-TiCN/ Al2O3 coated tools, followed by PVD AlTiN coated-microblasted and PVD-AlTiN coated tools. Tool life was largely aff ected by cutting speed. However, PVD-AlTiN coated tools exhibited this eff ect more noticeably. The models, with correlation coeffi cients found above 0.9, can be utilized to predict responses in turning AISI 304 stainless steel. The optimization study revealed that turning AISI 304 stainless steel with MTCVD-TiCN/Al2O3 coated tools incurs lower cutting forces of 18–27 N, produces a minimum surface roughness of 0.3–0.44 μm, and has a better tool life of 36–51 min compared to PVD-AlTiN coated (C) and PVD-AlTiN coated-microblasted (CMB) tools. For citation: Chinchanikar S., Gadge M.G. Performance modeling and multi-objective optimization during turning AISI 304 stainless steel using coated and coated-microblasted tools. Obrabotka metallov (tekhnologiya, oborudovanie, instrumenty) = Metal Working and Material Science, 2023, vol. 25, no. 4, pp. 117–135. DOI: 10.17212/1994-6309-2023-25.4-117-135. (In Russian). ______ * Corresponding author Chinchanikar Satish, Ph.D. (Engineering), Professor Vishwakarma Institute of Information Technology, Pune - 411039, Maharashtra, India Tel.: +91-2026950441, e-mail: satish.chinchanikar@viit.ac.in References 1. He H.B., Li H.Y., Yang J., Zhang X.Y., Yue Q.B., Jiang X., Lyu S.K. A study on major factors infl uencing dry cutting temperature of AISI 304 stainless steel. International Journal of Precision Engineering and Manufacturing, 2017, vol. 18, pp. 1387–1392. DOI: 10.1007/s12541-017-0165-6. 2. Rao V.D.P., Ali S.R.M., Ali S.M.S., Geethika V.N. Multi-objective optimization of cutting parameters in CNC turning of stainless steel 304 with TiAlN nano coated tool. Materials Today: Proceedings, 2018, vol. 5 (12), pp. 25789–25797. DOI: 10.1016/j.matpr.2018.06.571. 3. Kulkarni A., Sargade V., More C. Machinability investigation of AISI 304 austenitic stainless steels using multilayer AlTiN/TiAlN coated carbide inserts. Procedia Manufacturing, 2018, vol. 20, pp. 548–553. DOI: 10.1016/j. promfg.2018.02.082.
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