COATED TOOL

• US 20100260560A1
• Filed: 05/16/2008
• Published: 10/14/2010
• Est. Priority Date: 07/02/2007
• Status: Active Grant

• Current Assignee: Walter AG (Sandvik AB)
• Original Assignee: Walter AG (Sandvik AB)
• Inventors: Schier, Veit
• Granted Patent: US 8,491,996 B2
• Time in Patent Office: Days
• US Class Current: 407/119
• CPC Class Codes: B22F 2005/001 Cutting tools, earth boring or grinding tool other than table ware
• CPC Class Codes: C23C 14/0036 Reactive sputtering
• CPC Class Codes: C23C 14/024 Deposition of sublayers, e.g. to promote adhesion of the coating C23C14/027 takes precedence
• CPC Class Codes: C23C 14/081 of aluminium, magnesium or beryllium
• CPC Class Codes: C23C 14/345 using substrate bias
• CPC Class Codes: C23C 30/005 on hard metal substrates
• CPC Class Codes: Y10T 407/27 comprising tool of specific chemical composition
• CPC Class Codes: Y10T 428/265 1 mil or less

Abstract

The invention concerns a cutting tool having a base body and a single-layer or multi-layer coating applied thereto. To provide cutting tools which are improved over the state of the art it is proposed according to the invention that the coating includes at least one two-phase or multi-phase layer which contains at least two different phases of metal oxide, wherein the at least one two-phase or multi-phase layer is electrically conductive.

Claims

16. A cutting tool according to the base body is made from hard metal or carbide metal, cermet, steel or high-speed steel (HSS).

20-1. A cutting tool according to claim 20, wherein the layer thickness is 0.5 μ

m to 4 μ

m.