METHOD OF PRODUCTION RARE-EARTH MAGNET

摘要

A production method includes producing a rare-earth magnet precursor (S') by performing first hot working in which, in two side surfaces of a sintered body, which are parallel to a pressing direction and are opposite to each other, one side surface is brought to a constrained state to suppress deformation, and the other side surface is brought to an unconstrained state to permit deformation; and producing a rare-earth magnet by performing second hot working in which, in two side surfaces (S' l, S'2) of the rare-earth magnet precursor (S'), which are parallel to the pressing direction, a side surface (S'2), which is in the unconstrained state in the first hot working, is brought to the constrained state to suppress deformation, and a side surface (S' l), which is in the constrained state in the first hot working, is brought to the unconstrained state to permit deformation.