METHOD OF PRODUCTION OF THE MULTILAYERED COATING FOR THE CUTTING TOOLS Russian patent published in 2006 - IPC C23C14/06 C23C14/48 

FIELD: mechanical engineering; methods of deposition of abrasive resistant coatings on the cutting tools.

SUBSTANCE: the invention is pertaining to the methods of deposition of abrasive resistant coatings on the cutting tools and may be used in the metal working. In the offered methods providing for the vacuum-plasma deposition of the layers of the coating, according to the invention, deposition of the layers of the coating is exercised by the three cathodes. At that they use the cathode made out of a titanium alloy, the cathode made out of a zirconium alloy and the composite cathode made out of titanium and molybdenum with the contents of molybdenum equal to 30 % or the composite cathode made out of titanium and molybdenum with the contents of molybdenum equal to 30 % and at that they deposit the lower layer made out of titanium nitride and zirconium and the upper layer made out of titanium nitride and a molybdenum and the intermediate layer made out of the ternary nitride containing components of the upper layer and the lower layer or the lower layer made out of titanium carbonitride and zirconium carbonitride, the upper layer - out of titanium carbonitride and molybdenum carbonitride and the intermediate layer - out of the ternary carbonitride, containing components of the upper and the lower layers. According to the alternative versions of the invention the deposition of layers of the coating is exercised by the three cathodes

arranged horizontally in the plane. At that they use the cathode made out of titanium alloy, the composite cathode made out of titanium and aluminum with the contents of titanium - 20 % and the composite cathode made out of titanium and molybdenum with the contents of molybdenum - 30 % or the composite cathode made out of titanium and molybdenum with the contents of molybdenum - 30 % and at that deposit the lower layer - made out of titanium nitride and aluminum nitride, the upper layer - made out of titanium nitride and molybdenum nitride and the intermediate layer - made out of ternary nitride containing components of the upper layer and the lower layer or the lower layer - made out of titanium carbonitride and aluminum carbonitride, the upper layer - made out of titanium carbonitride and molybdenum carbonitride, and the intermediate layer - made out of ternary carbonitride, containing components of the upper layer and the lower layer. The invention ensures improved serviceability of the cutting tools and quality of the treatment.

EFFECT: the invention ensures improved serviceability of the cutting tools and quality of the treatment.

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