Method of manufacturing coated cutting tool and coated cutting t

Details Method of manufacturing coated cutting tool and coated cutting t Method of manufacturing coated cutting tool and coated cutting t

1997-01-10

1998-06-23

Beck, Shrive

Coating processes

Coating by vapor, gas, or smoke

Base includes an inorganic compound containing silicon or...

4272551, 4272553, C23C 1640

Patent

active

057702616

ABSTRACT:
A method of preparing a coated cutting tool is provided involving formation of a hard coating layer including an aluminum oxide layer to an average layer thickness of 3-20 microns on the surface of a cutting tool substrate using chemical vapor deposition and/or physical vapor deposition, to give a coated cutting tool excellent in chipping resistance, where the aluminum oxide layer is formed from an inert gas type reaction gas containing aluminum chloride and nitrogen oxides, and optionally titanium tetrachloride, nitrogen and hydrogen, in an inert carrier gas.

REFERENCES:
patent: 4675089 (1987-06-01), Lory et al.
patent: 4745010 (1988-05-01), Sarin et al.
patent: 4943450 (1990-07-01), Sarin
patent: 5545490 (1996-08-01), Oshika

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