ROTARY CUTTING TOOL HAVING A CUTTING EDGE FORMED OF VEINED PCD

摘要

A rotary cutting tool (40) formed from a blank (42) having at least one tooth (58) including a root (50) and a cutting edge (46) formed of veined PCD, wherein the tooth face as viewed in a cross-section perpendicular to an axis of the cutting tool includes a first curved surface (44, 64) proximate the cutting edge, and a second curved surface (48, 68) proximate the root (50) and the first curved surface. For each cutting edge, the blank is provided with a respective groove (52) having a leading surface (54) that corresponds in shape to the first curved surface of the respective tooth.