Parameter Optimization and Machining Performance of Inconel 625 with Nanoparticles Dispersed in Biolubricant

Abstract

Productivity and cost-effectiveness are essential components of any long-term manufacturing system. While quantity and quality are linked to productivity, the economy focuses on energy-efficient processes that produce a high output-to-input ratio. Hard-to-cut materials have always been difficult to machine because of more significant tool wear and power losses. Inconel 625 is a hard material used in aerospace and underwater applications and is milled using biolubricants with nanoparticles. Palm oil is considered a biolubricant, and titanium dioxide (TiO2) and copper oxide (CuO) are selected as nanoparticles. When the combination of biolubricants and nanoparticles is added to the workpiece’s surface, it enhanced some properties while machining. Experiments involving four factors with four levels were carried out using the Taguchi design of experiments (DoE). The feed, depth of cut, speed, and coolant with nanoparticle additives were all factors. The responses were surface roughness, spindle vibration along X, Y, and Z axes, and material removal rate. Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) was used to alter the multiresponse optimization problem to a single-response optimization problem. The S/N of TOPSIS closeness coefficients was calculated, and the optimal machining conditions were determined. Surface roughness, material removal rate, and spindle vibration were reduced by 3.10%, 6.14%, 7.54% (Vx), and 6.78% (Vz), respectively, due to the TOPSIS optimization.

Review of advances in tool condition monitoring techniques in the milling process

“…The MEMs-based vibration sensor (MPU6050) can be easily fixed on the spindle head to measure the vibration signals. The MPU6050 is a low-cost sensor and more suitable for small-scale industries [93]. Inconel 625 was selected as a workpiece, and conventional cutting fluid was used as a coolant.…”

Effect of Nano-Additives on Tribological Behaviour of Hazelnut Oil and Sunflower Oil

“…The nanoparticles sometimes structure a bond with a metallic surface and sometimes turn sliding into rolling friction [16,17]. The addition of 0.25% CuO and TiO2 in palm oil based cutting fluid aided in a significant reduction of spindle speed vibration, surface roughness and material removal rate [18,19].…”