Cutting insert with finishing and roughing cutting edges

摘要

An indexable cutting insert includes a top surface, a bottom surface and a plurality of side surfaces. Each side surface includes a first pair of chip grooves, and a second pair of chip grooves. A planar corner surface is disposed between each side surface. A corner radius extends between the top and bottom surfaces and the planar corner surface. A plurality of primary wiper cutting edges are formed at an intersection between each of the first pair of chip grooves and the top and bottom surfaces. A plurality of secondary roughing cutting edges are formed at an intersection between each corner radius and each of the first pair of chip forming grooves. A plurality of wiper cutting edges are formed at an intersection between each planar corner surface and each of the second pair of chip forming grooves. A milling cutter is also disclosed.

主权项

1. An indexable cutting insert, comprising:
a top surface, a bottom surface identical to the top surface, and a plurality of side surfaces that are identical to each other, each side surface including a first pair of chip grooves extending perpendicular to a central, longitudinal axis, and a second pair of chip grooves extending parallel to the central, longitudinal axis; a plurality of planar corner surfaces, each planar corner surface extending between two adjacent side surfaces; a first corner radius extending between the top surface and each of the plurality of planar corner surfaces, and a second corner radius extending between the bottom surface and each of the plurality of planar corner surfaces; a plurality of primary wiper cutting edges formed at an intersection between each of the first pair of chip grooves and the top and bottom surfaces; a plurality of secondary roughing cutting edges formed at an intersection between each corner radius and each of the first pair of chip forming grooves; and a plurality of wiper cutting edges formed at an intersection between each planar corner surface and each of the second pair of chip forming grooves.