| 摘要 |
PROBLEM TO BE SOLVED: To ensure that a magnet is not impaired by burrs generated by the press removal of a resin from an outer periphery of the magnet. SOLUTION: The method for manufacturing a resin molded body with a cylindrical magnet comprises an injection molding process which injection-molds a resin into the outer periphery and the hollow interior of a cylindrical magnet disposed inside a cavity of a mold; a separating process which separates the resin from the outer periphery of the cylindrical magnet; and a burr removal process which removes the burrs generated on the circumferential part of the resin molded body in the separating process, using a lathe. In this method, the burr removal process is a process to cut the burr part with the help of a cutting tool for removing the burr which is equipped with a cutting tip, a head for fastening the tip and a shank with a spring which can move the head in the axial direction of the resin molded body when cutting resistance is applied by the feeding of the head in the axial direction. COPYRIGHT: (C)2005,JPO&NCIPI
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