US6284366B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting tool and method of making same
Assignee: Widia GmbH
•
Filing: 1999-06-01
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Granted: 2001-09-04
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Expires: 2019-06-01
Abstract
Abstract A tool having a substrate and at least as a sole layer or the outermost layer, a coating of the molybdenum sulfide containing 0.5 to 6 atomic % chlorine.
Inventors
- 👤 Udo König
- 👤 Ingolf Endler
- 👤 Albrecht Leonhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:15
CPC Classifications
C; C23; C23C; C23C28/00; C23C28/04; C23C28/044; C23C16/00; C23C16/22; C23C16/30; C23C16/305; C23C30/00; C23C30/005; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
71 words
A tool comprising: a substrate forming a tool body and composed of at least one material selected from the group which consists of hard metals, cermets, ceramics and steel; and a coating comprised of at least one layer on said substrate and including an outermost molybdenum sulfide layer, the outermost molybdenum sulfide layer being composed predominantly of molybdenum sulfide and containing chlorine in an amount of 0.5 to 6 atomic percent.
Claim 2
Dependent Claim
71 words
A tool comprising: a substrate forming a tool body and composed of at least one material selected from the group which consists of hard metals, cermets, ceramics and steel; and a coating comprised of at least one layer on said substrate and including an outermost molybdenum sulfide layer, the outermost molybdenum sulfide layer being composed predominantly of molybdenum sulfide and containing chlorine in an amount of 0.5 to 6 atomic percent.
Claim 3
Dependent Claim
41 words
The tool defined in claim 1 wherein the molybdenum sulfide in said outermost molybdenum sulfide layer has a hexagonal lattice structure with a preferred orientation of axes of the lattice hexagons normal to a surface of said outermost molybdenum sulfide layer.
Claim 4
Dependent Claim
48 words
The tool defined in claim 1 wherein said outermost molybdenum sulfide layer is composed of at least 70% by volume of molybdenum sulfide with said hexagonal lattice structure, the balance being selected from the group which consists of rhombohedral molybdenum sulfide, Mo 2 S 3 and mixtures thereof.
Claim 5
Dependent Claim
20 words
The tool defined in claim 1 wherein said outermost molybdenum sulfide layer has a thickness of 0.2 to 3 μm.
Claim 6
Dependent Claim
27 words
The tool defined in claim 1 wherein said outermost molybdenum sulfide layer has a metallic sealing layer of a thickness of at most 0.3 μm applied thereto.
Claim 7
Dependent Claim
34 words
The tool defined in claim 5 wherein said metallic layer is composed of at least one substance selected from the group which consists of molybdenum, molybdenum carbide, titanium carbonitride, titanium carbide and zirconium carbonitride.
Claim 8
Dependent Claim
63 words
The tool defined in claim 1 wherein said outermost molybdenum sulfide layer is a multilayer composite having at least one thin layer between molybdenum sulfide layers thereof, the thin layer having a thickness of at most 0.3 μm and being composed of at least one substance selected from the group which consists of molybdenum, molybdenum carbide, titanium carbonitride, titanium carbide and zirconium carbonitride.
Claim 9
Dependent Claim
61 words
The tool defined in claim 1 wherein said tool has, between said substrate and said outermost molybdenum sulfide layer, a plurality of other layers each composed of at least one substance selected from the group which consists of the carbides, nitrides, carbonitrides, oxycarbonitrides, oxides and borides of an element from Groups IVa to VIa of the Periodic Table, and a ceramic.
Claim 10
Dependent Claim
15 words
The tool defined in claim 8 wherein said ceramic is Al 2 O 3 .
Claim 11
Dependent Claim
22 words
The tool defined in claim 8 wherein all of the layers on said substrate have a collective thickness less than 20 μm.
Claim 12
Dependent Claim
23 words
The tool defined in claim 1 wherein said coating consists of a layer sequence TiN—Ti(C,N)—TiN between said substrate and said outermost molybdenum layer.
Claim 13
Dependent Claim
17 words
The tool defined in claim 1 configured as a cutting tool for the machining of metal workpieces.
Claim 14
Dependent Claim
18 words
The tool defined in claim 1 wherein said outermost molybdenum layer contains 0.5 to 3 atomic percent chlorine.
Claim 15
Dependent Claim
49 words
The tool defined in claim 1 , further comprising a sealing layer of a thickness of at most 0.3 μm on said outermost molybdenum sulfide layer and consisting of at least one substance selected from the group which consists of molybdenum carbide, titanium carbonitride, titanium carbide and zirconium carbonitride.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-09-03 | 2005-03-05 | 2005-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-09-03 | 2009-03-05 | 2009-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-09-03 | 2013-03-05 | 2013-09-04 | $7700.00 | Window Closed / Lapsed |