INSERT FOR BALL END MILL AND INDEXABLE BALL END MILL

摘要

PROBLEM TO BE SOLVED: To provide an insert for a ball end mill which forms a cutting blade up to the center of a rotating tip and can be manufactured while suppressing manufacturing costs, related to the insert for the ball end mill having a high-hardness sintered body as the cutting blade.;SOLUTION: The insert for the ball end mill performing cutting processing by rotation is characterized in that: the cutting blade of the insert is constituted of the high-hardness sintered body; the insert is braze-joined by inserting a complex sintered body which is formed by integrally sintering the high-hardness sintered body to the single face of a plate material formed of cemented carbide into an insert base body; an insertion groove of the insert base body is formed so that the rotation center 8 of the insert base body may be located at the center 9 in the thickness direction of the high-hardness sintered body; and a braze-joining face with the insert base body in the complex sintered body is formed into a recessed shape having a plurality of joining faces.;COPYRIGHT: (C)2013,JPO&INPIT