Improving the Performance of Palm Kernel Oil/Castor Oil as Cutting Fluids in Machine Operation
Keywords:
Chip thickness ratio, Cutting fluid, Dry machining, Environment, Machinability, Material removal rate, Signal-to-noise ratio, Surface roughness, SustainabilityAbstract
This study explores palm kernel oil as a sustainable, eco-friendly alternative to conventional cutting fluids, which are often toxic and harmful to the environment and health. The performance of palm kernel oil, castor oil, commercial Aquicut 40, and a formulated palm kernel-castor oil blend was evaluated for machining AISI 304 steel, focusing on tool wear, surface finish, and cutting temperature. The formulated blend exhibited favorable properties, including a pH of 10.10, viscosity of 2.023 Pas at 28°C, corrosion resistance, and stability. Optimal machining conditions (800 rev/min, 0.15 mm/rev feed rate, 1.0 mm depth of cut) yielded reduced tool wear, improved surface finish, and a maximum cutting temperature of 78°C. The findings highlight the potential of palm kernel-based oils as sustainable cutting fluids for enhanced machining performance.
