Method for cutting rare earth alloy sintered magnet and application of said method to the manufactur

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A method for cutting a rare earth alloy according to the present invention includes the steps of : a) supplying slurry containing abrasive grains onto a wire; and b) machining the rare earth alloy with the abrasive grains, interposed between the wire and the rare earth alloy, by running and pressing the wire against the rare earth alloy. The slurry contains, as a main component, oil in which the abrasive grains are dispersed, and the viscosity of the slurry at 25 DEG C is in the range from 92 to 175 mPa . sec.