Optimizing the Turning Parameters by Applying Taguchi Method and Analysis of Variance for Turning of Aluminium Alloy Al6463 with Varying Mg and Si % Composition

An attempt has been made in this paper to carry out an experimental investigation on aluminium alloys and mainly focuses on the optimization of turning parameters during the turning of the alloy Al6463. Coated carbide TNMG inserts having a 60° cutting angle and nose radii of 0.4 and 0.8 mm were used as cutting tool material for turning. Wet machining was used with coolant Chevron Soluble Oil B. Using the L16 orthogonal array, a total of 16 experiments were conducted according to the Taguchi method with different parameter settings such as feed, speed, depth of cut, material composition, and tool nose radius. ANOVA analysis was performed to find the optimal parameter settings for surface roughness, metal removal rate, machining time, machining force, and machining power. The results for the Al6463 alloy with varying percentage compositions of major alloying elements, viz., magnesium & silicon, indicate that depth of cut is the most influential parameter for surface roughness and material composition for metal removal rate, machining time, machining force & machining power.