The effect of the coating process (Nb–Ti–Al–V) N on the characteristics of the pre-nitrided high-speed steel of the gear-shaping cutters at nitriding temperature of 510 °C and holding time of 45 min and wear resistance in the cutting process.
|The ratio of gases when nitriding (nitrogen/argon)||The characteristics of the nitrided layer of high-speed steel||The characteristics of the nitrided layer of high-speed steel after coating||Wear of the tooth (μm)
of the gear-shaping cutter after 50 min of work
|Total thickness (μm)||Microhardness (GPa)||Total thickness (μm)||Microhardness (GPa)|
|20% N2/80% Ar||380||12.4||500–560||12.2||110|
|40% N2/60% Ar||320–350||12.8||400–440||12.6||175|
|60% N2/40% Ar||220–240||13.1||350–380||13.0||320|
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