Patent ID: 8858130
Filing Date: 2014-10-14
Classification: B23B,B23C,Y10T

Abstract:
1. A toolholder system for cutting a workpiece, wherein there is relative rotation between the toolholder and the workpiece, wherein the toolholder system is comprised of: a) at least one circular cutting insert having: b) a toolholder having at least one seat securably holding the at least one circular cutting insert non-rotatable about the insert central longitudinal axis, wherein each of the at least one seats includes a bottom wall for engaging one of the front face and the back face of an insert, wherein the bottom wall further includes a plurality of receiving segments positioned upon the bottom wall in the same pattern as the front face and the back face and wherein the at least one cutting insert is indexably secured to the toolholder such that during a cutting operation, when mounted with the front face exposed, a portion of the front face cutting edge is available to the workpiece and when the same insert is inverted with the back face exposed, a portion of the back face cutting edge is available to the workpiece, wherein the front face portions and the back face portions available to the workpiece are always radially shifted from one another.