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 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 planar corner surface between each side surface; a corner radius extending between the top and bottom surfaces and the planar corner surface; 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.