CVD COATED CUTTING TOOL

The present invention relates to a coated cutting tool comprising a substrate and a coating comprising one of more layers. The coating comprises a layer of ±-Al 2 O 3 of a thickness of 1-20 µm deposited by chemical vapour deposition (CVD), wherein said ±-Al 2 O 3 layer exhibits an X-ray diffraction...

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Bibliographische Detailangaben
Hauptverfasser:	LINDAHL, Erik, ENGQVIST, Jan
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	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 DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	The present invention relates to a coated cutting tool comprising a substrate and a coating comprising one of more layers. The coating comprises a layer of ±-Al 2 O 3 of a thickness of 1-20 µm deposited by chemical vapour deposition (CVD), wherein said ±-Al 2 O 3 layer exhibits an X-ray diffraction pattern and wherein the texture coefficient TC(h k l) is defined according to Harris formula, wherein 1