Experimental Investigation of Machining Parameter for AJM using Nimonic Alloy 75
Keywords:
AJM, Non Traditional Machining Methods, Nimonic Alloy 75, Al2O3 abrasive spocksAbstract
In abrasive jet machining (AJM), abrasive specks stay motley by compacted air in a closed chamber and are intensive over the objective surface over a nozzle. The stream of specks coming out of the nozzle through very extraordinary swiftness(175-300m/s) impacts the objective surface and eliminates the material by destruction. Typically for abrasive jet machining brittle work piece or fragile materials are machined more capably. In this project, the highlights are the stimulus of dissimilar progression considerations like Nozzle Diameter(D),Pressure(P),and Nozzle Tip Distance(ND), on the Metal removal (MRR) of Nimonic alloy 75 by Abrasive jet machining. Tungsten carbide nozzles with diameters 2mm, 3mm, 4mm, were deliberated. For this study Al2o3 abrasive with partical size of
about (40 µm , 60µm) is elected. Other limits contain Pressure (7bars,8bars, 9bars), Nozzle Tip Distance (5mm, 6mm, and 7mm) are considered. Experiments were conducted and the effects were examined, which includes design of experiments (DOE), Taguchi, ANOVA (analysis of variance) and GRA
