Patent ID: 6152658
Filing Date: 2000-11-28
Classification: B23B,Y10T

Abstract:
A modular cutting tool assembly comprising:(a) a tool holder having at least one insert receiving pocket with a base and a plurality of lateral support surfaces, reference being made to a pocket axis of said insert receiving pocket with which an axis of symmetry of an insert is to be aligned, a first of said lateral support surfaces forming an angle .theta. with a second of said lateral support surfaces as measured in a plane perpendicular to said pocket axis, where .theta. is substantially equal to 90.degree.;(b) at least two cutting inserts interchangeably receivable within said pocket, each of said cutting inserts having an upper surface bounded by a cutting edge, a bottom surface, a peripheral flank surface and an insert axis of rotational symmetry, said peripheral flank surface being configured to provide a plurality of abutment surfaces, a first of said abutment surfaces forming an angle .theta. with a second of said abutment surfaces as measured in a plane perpendicular to said insert axis for positioning in abutment with said lateral support surfaces,wherein said cutting edge of a first of said cutting inserts is configured to provide at least two cutting points each having a first nose angle measured between portions of said cutting edge substantially equal to 80.degree., and wherein said cutting edge of a second of said cutting inserts is configured to provide at least two cutting points each having a second nose angle different from said first nose angle.