MILLING CUTTER AND CUTTING INSERT THEREFOR

摘要

An indexable cutting insert (10) for use in a milling cutter (50). The cutti ng insert (10) having four identical side surfaces (16) extending between generally square shaped top (12) and bottom surfaces (14) with two diametrically opposite protuberances (28) extending away from each other in a top or bottom view of the cutting insert (10). The cutting insert (10) has eight identical major (30) and minor cutting edges (32). The milling cutter (50) having the general form of a circular disk (52) with a plurality of the cutting inserts (10) releasably mounted in insert pockets (54) angularly around the periphery (58) of the cutter. The cutting inserts (10) are arrang ed to produce a profile (60) on a workpiece (62) having a central straight section (60) and two beveled sections (60', 60'') on either side of the central straight section (60).