SURFACE-COATED CUTTING TOOL

A surface coated cutting tool includes a tool substrate; and a hard coating layer on the tool substrate. The hard coating layer includes, in sequence from the tool substrate toward a surface of the tool, a titanium carbonitride inner layer, a titanium nitride lower intermediate layer, a titanium car...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	ABE, Mitsuhiro, NAKAMURA, Eiji, KAWANO, Kazuhiro
Format:	Patent
Sprache:	eng ; fre ; ger
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 DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY PERFORMING OPERATIONS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING TURNING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A surface coated cutting tool includes a tool substrate; and a hard coating layer on the tool substrate. The hard coating layer includes, in sequence from the tool substrate toward a surface of the tool, a titanium carbonitride inner layer, a titanium nitride lower intermediate layer, a titanium carbonitride upper intermediate layer, a titanium oxycarbonitride bonding auxiliary layer, and an aluminum oxide outer layer. Titanium nitride grain boundaries in the lower intermediate layer and titanium carbonitride grain boundaries in the upper intermediate layer are continuous from titanium carbonitride grain boundaries in the inner layer. The texture coefficient TC(422) of titanium carbonitride in the inner layer and the upper intermediate layer is 3.0 or more, and the texture coefficient TC(0 0 12) of α-aluminum oxide in the outer layer is 5.0 or more.