A COATED CUTTING TOOL

The present invention relates to a coated cutting tool comprising a substrate of cemented carbide and a coating, wherein the cemented carbide comprises WC grains and eta phase grains and metallic binder, wherein the metallic binder comprises Co, Cr and Ti, wherein the eta phase content in the cement...

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Bibliographische Detailangaben
Hauptverfasser:	GOLD, Christian, GARCIA, José Luis, STIENS, Dirk, SCHIER, Veit
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ALLOYS 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 FERROUS OR NON-FERROUS ALLOYS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The present invention relates to a coated cutting tool comprising a substrate of cemented carbide and a coating, wherein the cemented carbide comprises WC grains and eta phase grains and metallic binder, wherein the metallic binder comprises Co, Cr and Ti, wherein the eta phase content in the cemented carbide is 1-10 vol%, the average grain size of the eta phase grains is 0.5- 5 µm and the thickness of the coating is 1 - 15 µm. La présente invention concerne un outil de coupe revêtu comprenant un substrat de carbure cémenté et un revêtement, le carbure cémenté comprenant des grains de WC et des grains de phase êta et un liant métallique, le liant métallique comprenant Co, Cr et Ti, la teneur en phase êta dans le carbure cémenté étant de 1 à 10 % en volume, la taille de grain moyenne des grains de phase êta étant de 0,5 à 5 µm et l'épaisseur du revêtement étant de 1 à 15 µm.