METHOD OF PRODUCING WEAR RESISTANT COATING FOR CUTTING TOOL Russian patent published in 2015 - IPC C23C14/06 C23C14/24 B23B27/14 

FIELD: process engineering.

SUBSTANCE: invention relates to application of wearproof coating on cutting tool and can be used in machining. Vacuum-plasma application of wearproof coating is performed, coating being composed of titanium, aluminium, silicon, molybdenum and zirconium nitride or carbonitride at the following ratio, wt %: titanium - 34.2, molybdenum - 18.2, aluminium - 11.8, silicon - 1.5, zirconium - 34.3. Application is executed by three cathodes arranged horizontally in one plane. First cathode is composed of niobium and alloy of aluminium and silicon. Second cathode is made of zirconium and arranged opposite the first one while third cathode id made of titanium and located there between.

EFFECT: higher cutting efficiency.

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