METHOD OF DEPOSITION OF THE MULTILAYER COATING FOR THE CUTTING TOOLS Russian patent published in 2007 - IPC C23C14/24 C23C14/06 

FIELD: mechanical engineering; metal working; other industries; methods of deposition of the wear-resistant coatings on the cutting tools.

SUBSTANCE: the invention is pertaining to the methods of deposition of the wear-resistant coatings on the cutting tools and may be used in the metal working-. The given method provides for the vacuum-plasma deposition- of the multilayer coating. The base layer is deposited out of the nitride or carbonitride of the compounds of titanium, silicon and aluminum at their ratio (in mass %): titanium - 86.0-87.3, silicon - 0.7-1.0, aluminum - 12-13. The upper layer is deposited out of the nitride or carbonitride of the compounds of titanium, silicon and zirconium at their - ratio (in mass %): titanium - 74.1-76.3, silicon - 0.7-0.9, zirconium - 23.0-25.0. Deposition of the coating layers is exercised by three cathodes located horizontally in the same plane. The first cathode is composed out of titanium and aluminum, the second cathode is composed out of titanium and zirconium and is placed oppositely to the first cathode, and the third cathode is composed out of the titanium and silicon alloy and placed between them. The given method allows -to increase the operational capability of the cutting tools.

EFFECT: the invention ensures the increased operational capability of the cutting tools.

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