Patent ID: 6802676
Filing Date: 2004-10-12
Classification: B23C,Y10T

Abstract:
A cutting insert of hard, wear resistant material comprising a body having substantially polygonal major surfaces, substantially planar flanks extending between the major surfaces respective pairs of the flanks intersecting to form corners, at least one pair of cutting edges comprising a lead cutting edge and a finish cutting edge sharing a common corner and being formed by intersection of one of the major surfaces with one of the respective pairs of flanks, wherein the finish cutting edge is a convex curve in a plane of the flank that forms the finish cutting edge, the curve having an apex proximate the common corner, the apex forming a wiper on the finish cutting edge, the one major surface including a center portion and a land disposed between the canter portion and the finish cutting edge wherein the finish cutting edges defines an edge of the land, the finish cutting edge including first and second portions situated on opposite sides of the apex and offset from the one major surface in a direction toward the other major surface.