METHOD FOR RECEIVING OF MULTILAYER COATING FOR CUTTING TOOL Russian patent published in 2009 - IPC C23C14/06 C23C14/16 C23C14/34 B23B27/14 

FIELD: metallurgy.

SUBSTANCE: invention relates to methods of application of wear-resistant coatings on cutting tool and can be used in metal-working manufacturing. Method includes vacuum-plasma application of multilayer coating. It is applied bottom layer from nitride or carbonitride of compound titanium, molybdenum and iron at its ratio, wt % - titanium 91.0-91.6, molybdenum 7.0-7.3, iron 1.4-1.7. It is applied intermediate - from nitride or carbonitride of compound titanium, molybdenum, aluminium and iron at its ratio, wt % - titanium 84.7-85.7, molybdenum 4.7-4.9, aluminium 8.7-9.3, iron 0.9-1.1 and top - from nitride or carbonitride of compound titanium, molybdenum and aluminium at its ratio, wt % - titanium 78.7-79.9, molybdenum 7.0-7.3, aluminium 13.1-14.0. There are used three cathodes located horizontally in the same plane, first of which is implemented as compound from titanium and iron, the second - compound from titanium and aluminium and is located oppositely the first, and the third - composite from titanium and molybdenum and located between them.

EFFECT: workability increasing of cutting tool.

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