Triangular double-sided milling insert and milling cutter therefor

Abstract

A milling cutter having a triangular double-sided milling insert and a tool body. The milling insert has three indexable portions. At each indexable portion the milling insert has a top main cutting edge, a top corner cutting edge, a bottom main cutting edge and a bottom corner cutting edge. On the top and bottom surfaces, a corner insert rake angle is greater than a main insert rake angle.

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