A Study of the Effect of Suspended Nanoparticles in Waste Cooking Oil on Cutting Force and Surface Roughness During the Turning of  Inconel 718

Yunes Ali Omar Balagem; Ahmad Nabil Ahmad Khalil

doi:10.58915/aset.v5i2.3119

Authors

Yunes Ali Omar Balagem Universiti Malaysia Perlis
Ahmad Nabil Ahmad Khalil Universiti Malaysia Perlis

DOI:

https://doi.org/10.58915/aset.v5i2.3119

Keywords:

Inconel 718, Machining efficiency, Nanolubricants, Sustainability, Waste cooking oil

Abstract

Inconel 718 is the most widely used nickel-based superalloy, used in the aerospace, automotive, and energy industries due to its exceptional thermomechanical properties. However, machining Inconel 718 remains a great challenge in modern manufacturing, marked by high cutting forces, rapid tool wear, and poor surface finishes. This study addresses the need for sustainable lubrication solutions by investigating nanolubricants formulated with Al2O3 nanoparticles suspended in waste cooking oil (WCO), transforming a common waste product into an eco-friendly, high-performance machining aid. The research evaluates the mechanical properties of these nanolubricants and their impact on cutting force and surface roughness at three nanoparticle concentrations (0.5%, 0.75%, and 1.0%) and cutting speeds (25, 50, and 100 m/min). The 0.75% concentration demonstrated optimal performance, reducing cutting force by 35.85% and improving surface roughness by up to 62.04% compared to dry machining. Although performance declined at higher speeds due to thermal degradation of the lubrication film and limitations in MQL spray penetration at elevated cutting velocities, these findings highlight the potential of WCO-based nanolubricants to enhance machining efficiency and support more sustainable manufacturing practices, which contribute to SDG 9 (Industry, Innovation and Infrastructure).

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