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  Scopus ID: 21100926589

Investigation on Turning Inconel 718 Using Nanofluid Under Minimum Quantity Lubrication

Paresh Kulkarni, Satish Chinchanikar and Nitin Motgi

Abstract

The nickel-based superalloy Inconel 718 is used in aerospace, marine, and defense applications due to its unique qualities. However, these alloys are challenging to cut because of their reduced heat conductivity and propensity for work-hardening. With a focus on sustainability, ongoing efforts are being made to increase the machinability of these alloys. This work investigates the shear angle and chip thickness ratio during the turning of Inconel 718 using nanofluid under minimum quantity lubrication (NFMQL) varying cutting speed, feed, and depth of cut. Aluminum oxide (Al2O3) nanoparticles were combined with a 0.25% concentration of commercially available palm oil to create a nanofluid. This study found the closely coiled, serrated continuous chips at higher speeds. The chip thickness ratio and the shear angle increased with the cutting speed and decreased with the increase in feed and depth of cut. The depth of cut, followed by cutting speed and feed, was the most critical parameter for the chip thickness ratio and shear angle. This study finds further scope for developing the cutting force model based on the chip thickness ratio and normal shear angle developed models during the oblique turning of Inconel 718 under NFMQL conditions.

Published on: March 20, 2024
doi: 10.17756/nwj.2024-s1-042
Citation: Kulkarni P, Chinchanikar S, Motgi N. 2024. Investigation on Turning Inconel 718 Using Nanofluid Under Minimum Quantity Lubrication.NanoWorld J 10(S1): S235-S240.

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