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US 7,802,945 B2Granted
Cutting tool for rough and finish milling
AssigneeKennametal Inc.
InventorsGlenn W. Sheffler, Gregory A. Hyatt, Paul D. Prichard, Linn R. Andras
Life of this patent
Estimating the term…
Abstract
A milling cutter (10) comprises a cutter body (12) having at least two operational annular rings (13, 14). An outer ring (13) is provided for rough milling and includes a plurality of cutting inserts spaced about the periphery of the cutter body. Positioned radially inward of the outer ring (13) is at least one ring (14) comprises a coating of abrasive material. As a result, a workpiece can be both tough and finish milled by a single milling cutter (10) with the rough cutting inserts (18) and the abrasive material.
Claims20
A milling cutter comprising:
- a cutter body having at least two annular operational rings formed thereon, the at least two operational rings including an outer ring formed about the periphery of the cutter body and at least one inner ring radially inward of the outer ring,
- wherein the outer ring has at least one insert pocket and a cutting insert secured in the insert pocket and the at least one inner ring has a continuous abrasive surface thereon;
- an adjustment element supported relative to the cutter body and adjustable in an axial direction relative to the cutter body to move the cutting insert in an axial direction relative to the cutter body.
Dependencies are inferred from the claim text.