Browse Publications Technical Papers 2020-28-0509
2020-09-25

Optimization and Experimental Analysis of AZ91E Hybrid Nanocomposite by Drilling Operation 2020-28-0509

The usage of AZ91E series magnesium alloy material increases in the field of automobile, aerospace and structural applications because of its enhanced mechanical properties, light weight and good machinability characteristics. The present investigation is to optimize the drilling process parameters of magnesium alloy (AZ91E) hybrid nano composite consisting of chopped basalt fiber (9wt%) and SiCp (7.5wt%) fabricated by vacuum stirring technique. AZ91E hybrid nano composite is drilled by M-Tab vertical machining centre equipped with CNC under dry state (without coolant). The dry state drilling operation was performed by HSS tool with varied input parameters like drill diameter (6mm, 8mm, 10mm and 12mm), spindle speed (200rpm, 300rpm 400rpm 500rpm), feed rate (5mm/min, 10mm/min, 15 mm/min, 20 mm/min) with constant depth of cut (15mm). The effect of machining time, metal removal rate and surface roughness is evaluated and optimum level of drilling parameters is determined through Taguchi technique. The stress concentration and temperature distribution path of AZ91E hybrid nano composite is detected during the drilling process by analysis of system software.

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