Surface-coated cutting insert and method for manufacturing...

Details Surface-coated cutting insert and method for manufacturing... Surface-coated cutting insert and method for manufacturing...

2011-01-25

2011-01-25

Turner, Archene (Department: 1784)

Coating processes

With post-treatment of coating or coating material

Gas jet or blast mechanically treats coating

C427S419100, C427S419200, C427S419700

Reexamination Certificate

active

07875316

ABSTRACT:
A method for manufacturing a surface-coated cutting insert that includes an insert body having a substrate of tungsten carbide-based cemented carbide, titanium carbonitride-based cermet or ceramics, a base layer, an intermediate layer and an outermost layer. The base layer and the outermost layer are made of a single layer or two or more layers formed of carbides, nitrides, oxides, or borides of one selected from the group consisting of Group IVa metals, Group Va metals, Group VIa metals, aluminum and silicon, or complex compounds thereof, and the intermediate layer is formed of primarily Al2O3. The outermost layer is removed on part of the insert body surface including the flank face and a flank face-side cutting edge portion of the intersecting edge line region, with the outermost layer being left on part of the rake face inside a boundary with the intersecting edge line region.

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