Milling cutter insert with chip control and milling cutter using the same
AssigneeKennametal Inc.
InventorBrian D. Hoefler
Life of this patent
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Abstract
A milling cutting insert is disclosed having a polygonal body of wear-resistant material, wherein the body has a top surface and a groove having a central axis extending along the entire length of one side of the insert having a central axis, and wherein: the group groove is tapered such that the width of the groove increases continuously along the side of the insert. A face milling cutter having an axial location surface for advancement in a direction of feed is also disclosed utilizing such a cutting insert so that a corner of the cutting insert is furthest from the axial location surface and the wide end of the groove associated with the cutting edge facing the direction of feed is adjacent to that corner.
Claims35
A milling cutting insert comprising a polygonal body of wear resistant material, said body including a top surface and a bottom surface opposing one another and therebetween a peripheral wall with sides and corners, the intersection of said peripheral wall and said top surface forming a cutting edge, said top surface comprising a groove having a central axis and extending along the entire length of one side, wherein the groove is tapered such that the width of the groove increases continuously along the side of the insert from one side corner to an adjacent side corner and wherein a narrow end of the groove is closest a wide end of a neighboring groove.
A face milling cutter adapted to be advanced in a feed direction along a cutter assembly centerline against a workpiece, wherein the assembly is comprised of:
- a) a milling cutter body about the assembly centerline, wherein the milling cutter body has an outer perimeter, pockets positioned radially about the perimeter of the body and an insert axial location surface;
- b) a plurality of milling cutter inserts, wherein each insert has a polygonal body of wear resistant material, said body including a top surface and a bottom surface opposing one another and therebetween a peripheral wall with sides and corners, wherein the intersection of the peripheral wall and the top surface form a cutting edge,
- c) wherein the top surface has:
- 1) a groove having a central axis and extending along the entire length of one side,
- 2) wherein the groove is tapered such that the width of the groove increases continuously along the side of the insert to define a narrow end and a wide end of the groove, and wherein the narrow end of the groove is closest the wide end of the neighboring groove, and
- d) wherein each cutting insert is oriented within a pocket such that one corner of the insert is furthest from the axial location surface and the wide end of the groove associated with the cutting edge facing the feed direction is adjacent to that corner.
Dependencies are inferred from the claim text.