Enhancing CNC Turning Efficiency of Aluminium 7071 Alloy Using Taguchi Method and L₂₇ Array

The arrival of Industry 4.0 has caused manufacturers to search for ways to achieve efficiency and production. This study aims to optimize the manufacturing process parameters in the CNC machining of an aluminium alloy, Aluminium Alloy 7071, with the L27 orthogonal array designed by Taguchi and the response surface design. The factors that directly affect the rate of material removal, surface roughness, and cutting force are the following: spindle speed (1000, 1400, and 1800 rpm), traverse feed (0.20, 0.25, and 0.30) mm/rev), and cutting depth (.5, 1.0, and 1.5 mm). To accomplish this experiment, 27 samples were fabricated using the array model of Al7071 alloy. A wide range of touch sensors (directly tactile and indirectly measured) are employed to study the associated responses. The L27 array of the Taguchi method is used to enhance the optimization process by providing such improvements as minimized surface roughness, the maximum removal rate of material, and reduced cutting force. The response surface contour plots exhibiting reactions for different parameter sets mirrored by significant effects diagrams demonstrating signal-to-noise ratios are used to analyze the outcomes. This result is a key that tells how process factors cope with each other to get the output. Finally, the research done here is used to optimize the machining operations by obtaining the most influential turning of Aluminium Alloy 7071. As one of the principle goals of the Industry 4.0 concept, the methods applied demonstrate a capacity to increase the efficiency, quality, and productivity of modern manufacturing.