RETRACTED ARTICLE: Hybrid nanofabrication of AZ91D alloy-SiC-CNT and Optimize the drill machinability characteristics by ANOVA route

With the suitability and eminent characteristics of magnesium-based matrix composites are interested in weight reduction applications. This investigation evaluates and optimizes the dry-state drilling behaviour of magnesium alloy (AZ91D) hybrid nanocomposite through a vertical type computer numerical controller work centre configured with Fanuc using carbide boron nitride coated drill tool. During the drilling process, the drill diameter (D-4, 6, 8, and 10 mm), spindle speed (N-400, 600, 800, and 1000 rpm), and feed rate (f-3, 5, 9, and 12 mm/min) is varied and fixed as an input factor. Influences of drill process parameters on drill temperature (T), metal removal rate (MRR), and surface roughness (Ra) are measured and fixed as the response value. By implementing the analysis of variance–Taguchi design adopted with General linear model tool, the optimum machining pairs are spotted to achieve the optimum temperature, low MRR and Ra. The optimized results summarized with a 4–10 mm drill diameter operated by 600–800 rpm at varied feed rates indicated better machining outputs and an 8 mm drill diameter performed with 800 rpm at 3 mm/min feed rate with a constant depth of cut is found to optimum machining temperature and low MRR & Ra of 57.1 °C and 0.0075 g/cc & 0.57 µm respectively.