PROCESS FOR COMBINED HARDENING OF TOOLS FROM HIGH SPEED STEEL HAVING AT LEAST PERCENT VANADIUM Russian patent published in 1994 - IPC

Abstract RU 2015199 C1

FIELD: mechanical engineering. SUBSTANCE: surface of tool is carbonitrated in a glow discharge with subsequent application of titan nitride in layers so that the first three ones are of 0.5 μm thickness and the last hardening layer is 5-6 μm thick. EFFECT: higher quality of hardening. 1 tbl

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RU 2 015 199 C1

Authors

Fuks-Rabinovich G.S.

Bogomolov V.G.

Moiseev V.F.

Tikhonychev V.V.

Dates

1994-06-30—Published

1991-04-01—Filed