Parametric Studies on Finishing of AZ31B Magnesium Alloy with Al₂O₃ Magnetic Abrasives Prepared by Combining Plasma Molten Metal Powder with Sprayed Abrasive Powder.

After installing the auxiliary magnetic pole under the workpiece, the magnetic field gradient of the whole grinding area changes in a clear trend, and the magnetic abrasive renewal is more active during MAF processing, which significantly improves the utilization rate of the abrasive.

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Checking the F-test (F-test) critical value table, the standard F-value for the given significance level at the significant level α = 0.05 is 2.534, and the F-value of the regression model of surface roughness is 22.53 > F 0.05 (14,12) = 2.424, indicating that the prediction model of the regression equation established between surface roughness and the four independent variables was highly significant, indicating a high degree of confidence in this prediction model.

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