Abstract

Abstract Fabrication of Abrasive Jet Machining (AJM) setup and parametric study of various process parameters in AJM setup have been carried out in the present work. Taper produced on the hole and Material Removal Rate (MRR) are the important output responses during the Abrasive Jet Machining (AJM). The main input variables that affect the output responses are Pressure, Stand of Distance (SOD), and Nozzle Diameter (ND).For abrasive, Silicon Carbide (SiC) with grit sizes of 60 µm and 120 µm has been chosen to find out the effect of grit size on output parameters during making holes on ceramic tiles. Experiments have been done by selecting L9 orthogonal array and results have been optimized with Response Surface Methodology (RSM). ANOVA is used to identify the significant process parameters. Statistical results (at a 95% confidence level) show that the nozzle diameter, Stand-off distance and pressure affect the metal removal rate by 43.85%, 47.73% and 6.65 % respectively by using abrasive size of 120 µm and by 32.04%, 65.24% and 2.3 % respectively by using abrasive size of 60 µm. The result shows that the maximum MRR value of 0.019 gm/sec and minimum taper value of 0.02 mm have been obtained by using abrasive size of 120 µm by Taguchi’s optimization method. From the results obtained by ANOVA it has been found out that the Stand-off distance is the most Significant parameter

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