PROCEDURE FOR PRODUCTION OF MULTI-LAYER COATING FOR CUTTING TOOL Russian patent published in 2011 - IPC C23C14/24 C23C14/06 

Abstract RU 2424367 C1

FIELD: metallurgy.

SUBSTANCE: multi-layer coating is applied by vacuum-plasma method. First, a lower layer out of nitride or carbonitride of compound of titanium and silicon is applied at their ratio, wt %: titanium 99.05-99.37, silicon 0.63-0.95. Further, there is applied an intermediate layer out of nitride or carbonitride of compound of titanium, silicon and molybdenum at their ratio, wt %: titanium 94.0-95.74, silicon 0.26-0.50, molybdenum 4.0-5.5 and there is applied an upper layer consisting of nitride or carbonitride of compound of titanium, silicon and molybdenum at their ratio, wt %: titanium 93.1-95.0, silicon 1.0-1.4, molybdenum 4.0-5.5. Three cathodes arranged horizontally in one plane apply layers of coating. The first and second cathodes are made complex out of titanium and silicon and are arranged opposite to each other, while the third cathode is made complex of titanium and molybdenum and is set between the first and second cathodes. The lower layer is applied with the first and second cathodes, the intermediate layer is applied with the first and third cathodes, and the upper layer is applied with the second and the third cathodes.

EFFECT: increased operability of cutting tool.

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RU 2 424 367 C1

Authors

Tabakov Vladimir Petrovich

Chikhranov Aleksej Valer'Evich

Vlasov Stanislav Nikolaevich

Dates

2011-07-20Published

2010-04-20Filed