Despite significant advances in machining technology, machining of Aluminum-based Metal Matrix Composites (Al-MMCs) is still a challenging task. To improve the surface quality of machined components and reduce tool wear, it is necessary to optimize the machining parameters such as cutting speed, feed rate, and depth of cut. The use of the proper machining environment mode is also critical to achieving the desired surface quality.
The increasing demand for Al-MMCs in various industries such as automobile, marine, aircraft, and aerospace calls for further research to address the challenges associated with their machining. This is due to the AI-MMCs properties like high strength-to-weight ratio, excellent fatigue resistance, low coefficients of thermal expansion, high stiffness, good workability, and better wear resistance. However, machining of MMCs is difficult due to their inhomogeneity, anisotropic nature, and dynamic cutting forces. Industrial applications of MMCs are often hampered by rapid tool wear, high cutting energy, and poor surface quality during machining [1]. In today’s scenario of metal cutting industries, the input parameters such as cutting velocity, depth of cut, feed or any other vital parameters are required to be optimized. Optimization will result into economic benefits for any manufacturing industries by reducing the total manufacturing cost per component. The latest techniques which are used for optimization are response surface methodology(RSM), Particle Swarm Optimization (PSO), Genetic algorithm(GA), Artificial Bee Colony(ABC), Grey relational theory, fuzzy logic, scatter search technique, Simulated Annealing(SA), and Taguchi technique, etc. An optimization method is a significant tool broadly adopted in the machining process to find the appropriate range of input process parameters so that the requirements of the product can be achieved. In other words, the optimization of machining variables is an important area where efforts are made to obtain the optimum values of variables for certain desired output responses. Therefore, various studies have been conducted on machining MMCs to optimize the machining parameters for desirable responses such as surface roughness and cutting forces [2–9]. Optimizing machining parameters helps in determining suitable input parameter values in advance for machining MMCs to achieve high-quality components. S.P. Palaniappan et al, investigates the machining of Aluminium 6082 using Taguchi and ANOVA. They found that the most significant parameter for MRR was speed similarly feed was the most significant parameter for Surface roughness. For MRR the optimum parameters are 1600 rpm speed, 0.25 mm/rev feed and 1.0 mm depth of cut and for Surface roughness the optimum parameters are 1200 rpm speed, 0.15 mm/rev feed and 1.5 mm depth of cut [10]. K. Soorya Prakash et al also studied Multi-objective optimization using Taguchi based grey relational analysis on reinforced Aluminum MMC [11]. A mathematical model to foresee responses, namely surface finish, vibration intensity, and temperature at work-tool interface was developed by M. Natraj and K. Balasubramanian when assessing machinability of hybride MMCs on CNC lathe [12]. According to Das, et al [13] the input parameters were optimized by making use of the Grey based Taguchi approach. They projected surface roughness values from their developed regression-based models. They have obtained the optimum value for depth of cut and feed is 0.4mm and 0.04mm/rev respectively. Among the parameters influencing surface roughness (Ra &Rz)., the feed was the most influential. Mohammed et al [14] concluded that RSM is a preferable tool for optimization and can predict the effects of variables on response. For nonlinear modeling applications, artificial neural networks (ANN) and fuzzy logic are additionally applied. However, ANN uses greater volume of experimental data. The rigidity of fuzzy logic is based on uncertainty, so rules must be developed properly in order to prevent errors. In this multi-objective optimization approach, Warsi et al. [15]. found that cutting speed and feed were the most effective parameters. Numerous works in machinability of MMCs was conducted by using Taguchi method. Using the Taguchi technique [16], the parameter values of its process were also optimized. The characteristics of the reinforcing materials affected the surface roughness and other machinability indices of AMCs significantly. significant impact on the surface roughness of AMCs as well as other machinability indices. This is because the reinforced material's overall ductility has decreased, and its hardness has increased. [17–19].
A methodology called Multivariate Robust Parameter Design (MRPD), utilised by Paiva and colleagues [20], is utilized to optimize the cutting parameters of AISI 52100 hardened steel when used in conjunction with wiper mixed ceramic inserts. Cutting speed of 200 m/min, feed of 0.20mm/rev and depth of cut of 0.2 mm were attained to be the optimum input parameters. Even Principal Component Analysis (PCA) was also employed to find out the association between the responses. A response surface methodology (RSM) was used by Meddour et.al [21] to model cutting forces and surface roughness. Based on the results of an ANOVA, they concluded that cutting force is primarily determined by the depth of cut. Ozel et al [22] used wiper ceramic inserts to turn on AISI D2 steels. Multiple linear regression models and neural network models were created in order to make predictions for surface roughness. In their study, Senthilkumar et al. [23] utilized the GRA-PCA technique to optimize the input process parameters. The experimental results indicated that a cutting speed of 250 m/min, a feed of 0.2 mm/rev, and a depth of cut of 0.4 mm led to optimal tool wear, workpiece surface roughness, and material removal. According to the ANOVA analysis, the most significant input parameter was the tool coating material, accounting for 72.87% of the output response variability, followed by the feed (17.15%), depth of cut (4.89%), and cutting speed (2.78%). The machinability behavior of hardened steel was examined by Gopalsamy et al. [24], who also utilized grey relational analysis to evaluate the optimal parameters for both rough and finish turning processes.