Patent ID: 9028178
Filing Date: 2015-05-12
Classification: B23C,B23D,Y10T

Abstract:
1. A material removal tool, comprising: a mating structure for attaching the material removal tool to a spindle of a machine tool; a reduced diameter circumferential insert housing including a plurality of inserts bonded thereto; a holder; and a reamer positioned in the holder and longitudinally extending therefrom along an axis of the material removal tool, wherein the mating structure, the reduced diameter circumferential insert housing, the holder and the reamer are arranged axially along the axis with the mating structure at a rearward most end and the reamer at the forwardmost end, wherein the plurality of inserts include cutting surfaces at different axial positions relative to the axis of the material removal tool and at different radial positions relative to the axis of the material removal tool, wherein the cutting surfaces at different axial and radial positions are arranged at different angles to the axis, wherein at least one cutting surface on at least one insert is at an angle of about 45 degree relative to the axis, wherein the cutting surfaces of inserts at a first axial position overlap in an axial direction the cutting surfaces of inserts at a second axial position, wherein the plurality of inserts include, collectively, a plurality of cutting surfaces positioned sequentially in the axial direction relative to the axis from a forwardmost cutting surface to a rearwardmost cutting surface and positioned sequentially in the radial direction relative to the axis from an innermost cutting surface to an outermost cutting surface, wherein a first cutting surface of the plurality of cutting surfaces positioned sequentially in the axial direction relative to the axis extends past an effective intersection point with a second cutting surface of the plurality of cutting surfaces positioned sequentially in the axial direction, and wherein a first cutting surface is the forwardmost and innermost cutting surface and wherein a second cutting surface is the rearwardmost and outermost cutting surface.