PVD coated cutting tool and method of its production

US6554971B2 · kind B2 · utility

Assignee

• SANDVIK AB · SE

Inventors

• Olaf Zywitzki · Freiberg, DE
• Klaus Goedicke · Dresden, DE
• Fred Fietzke · Dresden, DE
• Siegfried Schiller · Dresden, DE
• Torbjorn Selinder · Stockholm, SE
• Mats Ahlgren · Täby, SE

Key dates

• Filing date: Nov 13, 2001
• Grant date: Apr 29, 2003
• Expiry date: Nov 13, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C23C30/005
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The present invention describes a coating cutting tool for metal machining and a process for producing such tools. The coating is composed of one or more layers of refractory compounds of which at least one layer consists of nanocrystalline aluminum spinel of the type (Me)xAl2O3+x where Me is a second metal and 0<x&lE;1, deposited by Physical Vapor Deposition.