METHOD FOR PRODUCING ADVANCED HIGH-SPEED STEEL TOOL

PROBLEM TO BE SOLVED: To provide a method for producing a advanced high-speed steel tool which has good adhesion between a nitriding layer and a ceramic hardened film and excellent wear resistance in comparison with the conventional ceramic coating tool and is improved in productivity and reduced in...

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Hauptverfasser:	KITAJIMA KAZUO, SONOBE MASARU, KATOU NORIHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	BORING CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL COMBINED OPERATIONS DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY MILLING OTHER WORKING OF METAL PERFORMING OPERATIONS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING TURNING UNIVERSAL MACHINE TOOLS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for producing a advanced high-speed steel tool which has good adhesion between a nitriding layer and a ceramic hardened film and excellent wear resistance in comparison with the conventional ceramic coating tool and is improved in productivity and reduced in tool cost. SOLUTION: In an ion bombardment process performed before film-formation by using an arc-ion plating apparatus or an arc-melting ion plating apparatus to a tool base material composed of the high speed tool steel or a tool alloy steel, simultaneously, a plasma-nitriding treatment is applied. The arc-ion plating apparatus or the arc-melting plating apparatus is used as it is, and the ceramic hardened film is directly formed with the arc-melting system ion plating method or the arc-ion plating method successively on the nitriding layer subjected to the plasma-nitriding treatment. COPYRIGHT: (C)2004,JPO