Coated cutting tool member

Details Coated cutting tool member Coated cutting tool member

1998-05-12

2000-06-06

Turner, Archene

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

51295, 51307, 51309, 428212, 428336, 428698, 428701, 428702, B32B 900, B32B 706

Patent

active

060716010

ABSTRACT:
The present invention provide for a cutting tool member that has been coated with a hard coating. The hard coating has multiple layers including: a) a layer made of a titanium compound that has a cubic lattice structure, b) an Al.sub.2 O.sub.3 layer, and c) an intervening layer that includes a Ti.sub.2 O.sub.3 compound with a corundum-type lattice structure. The hard coating layer provides the cutting tool member with good strength and increases its operational lifetime.

REFERENCES:
patent: 4442169 (1984-04-01), Graham
patent: 4463062 (1984-07-01), Hale
patent: 4812370 (1989-03-01), Okada et al.
patent: 5863640 (1999-01-01), Ljungberg et al.
patent: 5920760 (1999-07-01), Yoshimura et al.
English Abstract of JP 6-108254 (Apr. 1994).

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