PROCEDURE FOR PRODUCTION OF MULTI-LAYER COATING FOR CUTTING TOOL

摘要

FIELD: metallurgy. ^ SUBSTANCE: procedure for production of multi-layer coating for cutting tool consists in vacuum-plasma application of three-layer coating. As a lower layer nitride of titanium and iron is applied at pressure of nitrogen in a chamber of the installation 7.510-4 Pa and temperature 600C. Same nitride alloyed with silicon is applied as an intermediate layer at pressure of nitrogen of 7.510-4 Pa and temperature 550C in the chamber of the installation. As an upper layer nitride of titanium and silicon is applied at pressure of nitrogen in a chamber of the installation 4.310-3 Pa and temperature 500C. ^ EFFECT: increased functionality of tool and upgraded quality of treatment. ^ 2 cl, 1 tbl, 1 ex