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

Abstract RU 2430987 C1

FIELD: metallurgy.

SUBSTANCE: three-layer coating is applied on working surfaces of cutting tool by vacuum-plasma-procedure. Carbonitride of titanium and iron is applied as a lower layer at pressure of acetylene in a chamber of the installation 7.5·10-4 Pa and temperature 600°C. The same carbonitride alloyed with silicon is applied as an intermediate layer at pressure of acetylene in the chamber of the installation 7.5·10-4 Pa and temperature 550°C and carbonitride of titanium and silicon is applied as an upper layer at pressure of acetylene in the chamber of the installation 4.3·10-3 Pa and temperature 500°C.

EFFECT: increased functionality of cutting tool and quality of processing.

1 tbl, 1 ex

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RU 2 430 987 C1

Authors

Tabakov Vladimir Petrovich

Tsirkin Aleksej Valer'Evich

Smirnov Maksim Jur'Evich

Sagitov Damir Il'Darovich

Dates

2011-10-10Published

2010-04-13Filed