GRINDING FLUID SUPPLY NOZZLE AND CUTTING DEVICE WITH THE SAME FOR RARE EARTH MAGNET

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PROBLEM TO BE SOLVED : To effectively supply a smaller quantity of grinding fluid than a usual device to a cutting point to carry out a highly accurate cutting operation at a high speed in a multi-cutting of a rare earth magnet. SOLUTION : A multi-cutting grindstone blade for cutting the rare earth magnet includes a plurality of cutting grindstone blades, which have grindstone outer peripheral cutting edges on an outer peripheral edge part of a thin plate disk shaped or thin plate doughnut disk shaped base plate, and are arranged on a rotating shaft at prescribed intervals along the axial direction. A grinding fluid supply nozzle 2 supplies grinding fluid to the multi-cutting grindstone blades. The grinding fluid supply nozzle has an introducing port of the grinding fluid formed in one end thereof and a plurality of slits 21 formed in the other end which respectively correspond to the cutting grindstone blades. Outer peripheral parts of the cutting grindstone blades are respectively inserted to the slits. COPYRIGHT : (C)2010, JPO&INPIT