FIELD: construction.
SUBSTANCE: coated drill formed by at least on a drill head has at least one layer applied by high power impulse magnetron sputtering (HIPIMS-layer), which is applied directly to the drill body. HIPIMS-layer has at least one layer of at least one nitride and or carbide and/or oxide. A layer of amorphous carbon or a carbon-containing layer (DLC-layer) is provided on the HIPIMS-layer. A layer of amorphous carbon or DLC-layer is provided on the HIPIMS-layer as a metal-containing DLC-layer, at that, metal content of the DLC-layer gradually decreases towards the surface. The obtained layers are dense and homogeneous, have good adhesion to slight surface roughness.
EFFECT: increased tool life with such coating.
26 cl, 2 dwg
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