Process for the production of a cutting tool

Details Process for the production of a cutting tool Process for the production of a cutting tool

1986-10-17

1988-07-05

Childs, Sadie L.

Coating processes

Nonuniform coating

Deforming the base or coating or removing a portion of the...

427249, 427255, 427284, 427355, B05D 300, B05D 500

Patent

active

047553995

ABSTRACT:
A process for producing a cutting tool having a rake face and flank face which intersect to form a cutting edge, which cutting tool comprises a substrate consisting of a sintered hard metal and a coating film provided thereon consisting of a material with a higher hardness than the substrate, which method involves subjecting the substrate to a coating treatment and honing treatment in such a manner that the coating film near the cutting edge has such a thickness that the thickness continuously increases in directions away from the cutting edge along both the rake face and the flank face from a minimum value, including zero, at the cutting edge, such that the thickness of the coating at the rake face reaches a maximum thickness at a first distance from the cutting edge and the thickness at the flank face reaches a maximum thickness at a second distance from the cutting edge, wherein the first distance is greater than the second distance.

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patent: 4162338 (1979-07-01), Schintlmeister
patent: 4205488 (1980-06-01), Englander et al.
patent: 4237184 (1980-12-01), Gonseth et al.
patent: 4269899 (1981-05-01), Fuyama et al.
patent: 4284687 (1981-08-01), Dreyer et al.
Kennedy et al., "Controlled Form Tungsten Carbide Coated Wire", IBM Technical Disclosure Bulletin, vol. 20, No. 8, Jan. 1978.

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