Patent ID: 6408840
Filing Date: 2002-06-25
Classification: B23D,B24B,B28D,Y02P

Abstract:
A method for cutting a rare earth alloy comprising the steps of: cutting an Râ€”Feâ€”B rare earth sintered magnet to be machined, where R is a rare earth element, using a cutting wire while supplying a slurry comprising dispersed abrasive grains between said cutting wire and said Râ€”Feâ€”B rare earth sintered magnet,wherein the Râ€”Feâ€”B rare earth sintered magnet is cut while being lowered from a position above said wire to a position below said wire, wherein said wire is driven with a drive member, at least a wire contact face of said drive member being composed of an organic polymer material, wherein said viscosity of said slurry at 25Â° C. is in range from 92 to 175 mPaÂ·sec, and wherein said cutting is carried out while a tension in a range between 14.7N and 39.2N is applied to said wire.