OBRABOTKAMETALLOV Vol. 27 No. 1 2025 technology resistance to flow at that temperature. The viscosity of various vegetable oils is shown in Fig. 4. Viscosity plays a crucial role in applications where oils are used to reduce friction and wear between moving components. Oils with higher viscosity generally provide better lubrication and film formation, thereby protecting mechanical components from damage. In metal processing operations, such as machining, where heat generation is unavoidable, the use of corn oil as a cutting fluid can effectively dissipate heat, preventing tool wear and extending tool life. Fig. 4. Viscosity of different vegetable oils Fig. 5. Thermal conductivity of different nanofluids The integration of nanoparticles into corn oil is an effective strategy for minimizing friction due to their superior tribological and thermo-physical characteristics compared to corn oil alone. Nano-lubricants have been shown to exhibit exceptional efficacy, forming a rolling, protective film and promoting mending and polishing effects. Fig. 5 shows the thermal conductivity behavior of nanofluids. Across all nanofluids, the thermal conductivity increases by up to 0.8 % with the incorporation of nanoparticles. However, when the nanoparticle concentration reaches 1 %, a decline occurs because
RkJQdWJsaXNoZXIy MTk0ODM1