Method of making a coated cutting tip

Details Method of making a coated cutting tip Method of making a coated cutting tip

1981-06-29

1983-02-22

Rutledge, L. Dewayne

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

75238, 75240, 428547, B22F 324, B22F 702

Patent

active

043746853

ABSTRACT:
A method of making a coated tip for cutting purposes having a lower degree of flank and crater wear and reduced chipping. A WC-based ultrahard alloy containing WC, at least one nitride selected from among TiN, TaN and NbN and a bonding metal is heat treated at a temperature of 800.degree. C. to 1,300.degree. C. in a nitrogen atmosphere for a sufficiently long period of time to cause nitride in a layer in the vicinity of the surface of the alloy to move to the surface to form a layer of nitride thereon as well as an alloy layer of WC and the bonding metal in which the nitride has been reduced. The surface of the tip is then coated with a layer of Al.sub.2 O.sub.3.

REFERENCES:
patent: Re29420 (1977-09-01), Lindstrom
patent: 3955038 (1976-05-01), Lindstrom
patent: 3994692 (1976-11-01), Rudy
patent: 4018631 (1977-04-01), Hale
patent: 4180400 (1979-12-01), Smith
patent: 4212671 (1980-07-01), Ettmayer
patent: 4282289 (1980-04-01), Kullander

Affiliated with

Also associated with

Rating

Method of making a coated cutting tip does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of making a coated cutting tip, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making a coated cutting tip will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1371968