Effect of Magnetic Abrasive Finishing Process on the Surface roughness of CuZn28 With New Pole Geometry

Magnetic abrasive finishing (MAF) is a non-traditional super-finishing process that produces parts with a high surface finish. In this study, new pole geometry has adopted to investigate its performance during MAF process of CuZn28 alloy. Four parameters with three levels were selected, including pole geometry with a pyramid shape, namely: rotational speed (rpm), finishing time, and current,. Taguchi design of experiment was utilized with L9 orthogonal array to study the effect of each parameter on the output response represented by surface roughness (∆Ra). The analysis of variance (ANOVA) used to show the extent of significance (if any) of such parameters. The regression model was developed to predict the output response. The experimental results revealed that the most significant factor is rotational speed followed by current, finishing time, and pole pyramid angle. The maximum achieved ∆Ra was 0.246 µm & that obtained at high rotational speed, medium working gap & finishing time and low pole angle.