Patent ID: 6050752
Filing Date: 2000-04-18
Classification: B23C,Y10T

Abstract:
An indexable cutting insert comprising a polygonal body of wear resistant material wherein the body has a center and includes top and bottom surfaces and therebetween a peripheral wall with sides and corners, wherein the intersection of the peripheral wall and the top surface forms a cutting edge extending from a first corner, along a side to a second corner, wherein for a cutting operation the insert is intended to engage a workpiece using the cutting edge, wherein the top surface comprises:a) a rake surface extending inwardly from the cutting edge toward the center of the insert along a length of the cutting edge from the first corner to a transition location spaced from the second corner;b) a deflecting surface extending upwardly and extending inwardly toward the center of the insert body along the length of the cutting edge;c) wherein between the first corner and the transition location the deflecting surface is recessed from the cutting edge and adjacent to the rake surface; andd) wherein the deflecting surface between the transition location and the second corner is directly adjacent to the cutting edge.