The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 19, 1985
Filed:
May. 01, 1984
Anatoly A Andreev, Kharkov, SU;
Igor V Gavrilko, Kharkov, SU;
Alexei G Gavrilov, Moskovskaya, SU;
Anatoly S Vereschaka, Moscow, SU;
Viktor P Zhed, Moscow, SU;
Valentin G Padalka, Kharkov, SU;
Andrei K Sinelschikov, Moscow, SU;
Vladimir T Tolok, Kharkov, SU;
Abstract
A multilayer coating of metal-cutting tools is composed of alternating layers of two components. One of these is a nitride or carbide of a metal of group IV. The other is a nitride, carbide, boride or silicide of a metal of group VI. The layer thickness of the group IV metal compound is from 0.05 to 0.5 .mu.m, and the layer thickness of the group VI metal compound constitutes 15 to 40 percent of the layer thickness of the group IV metal compound. The multilayer coating is preferably intended for application to metal-cutting tools used for machining high-alloyed materials.