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OwnerNobukazu Horiike, Jun Kitajima +2inventors
InventorsNobukazu Horiike, Jun Kitajima, Kouichi Ikenaga, Hiroshi Shimomura
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The present invention provides an indexable insert which can pare away the chip stably without increase of cutting resistance. With this insert, serrations are formed by arranging a plurality of groove portions and ridge portions alternatingly upon side ridge edge portions of the upper surface, with the exception of sloping surfaces which are formed at both end portions in the longitudinal directions of the upper surface. As a result, the cutting edges exhibit wavy shapes which are made up from this plurality of groove portions and ridge portions over the sloping surface, with the exception of these sloping surfaces. Furthermore, the groove portions and the ridge portions of the serrations are made as curved surfaces. This insert is fitted to a tool main body so that the groove portions and the ridge portions of the serrations extend perpendicular to the rotational axis of the tool.
An indexable insert upon which a generally arcuate cutting edge is formed upon a side ridge edge portion of an upper surface which is opposed to a lower surface which constitutes a seating surface of said indexable insert, and which is to be fitted to a tool main body so that the rotational trajectory of said cutting edge traces approximately a portion of a sphere;
An indexable insert upon which a generally arcuate cutting edge is formed upon a side ridge edge portion of an upper surface which is opposed to a lower surface which constitutes a seating surface of said indexable insert, and which is to be fitted to a tool main body so that the rotational trajectory of said cutting edge traces approximately a portion of a sphere;
An indexable insert upon which a generally arcuate cutting edge is formed upon a side ridge edge portion of an upper surface which is opposed to a lower surface which constitutes a seating surface of said indexable insert, and which is to be fitted to a tool main body so that the rotational trajectory of said cutting edge traces approximately a portion of a sphere;
An indexable insert upon which a generally arcuate cutting edge is formed upon a ridge edge portion between an upper surface which is opposed to a lower surface which constitutes a seating surface of said indexable insert and a side surface, and which is to be fitted to a tool main body so that the rotational trajectory of said cutting edge traces approximately a portion of a sphere;
Dependencies are inferred from the claim text.