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In this study, the influence of abrasive water jet machining (AWJM) parameters
such as water pressure, standoff distance, and traverse speed each at three different levels
were analyzed on the surface roughness of the Al- graphite composites which are fabricated
through the squeeze casting method. The experiments were conducted using L9 Taguchi
technique. The percentage contribution of each process parameter on surface roughness was
analyzed by means of analysis of variance. The contribution of water pressure on surface
roughness was found to be more significant than traverse speed and standoff distance. Linear
regression model was developed to predict the surface roughness.
Keywords: abrasive water jet machining; Al- graphite composites; squeeze casting; surface roughness; Taguchi; ANOVA |
full paper (pdf, 1456 Kb)