Patent · US Expired

Tool with a molybdenum sulfide coating and method for producing the same

US6521349B1 · kind B1 · utility

33Cited by

4References

15Claims

0Family size

Assignee

Widia GmbH · DE

Inventors

Udo Konig · Essen, DE
Volkmar Sottke · Bad Hersfeld, DE
Albrecht Leonhardt · Dresden, DE
Ingolf Endler · Coswig, DE

Key dates

Filing date	Jul 25, 2001
Grant date	Feb 18, 2003
Priority date	—
Expiry date	Jul 25, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/265
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The invention relates to a tool, especially a cutting insert for cutting metallic materials, consisting of a hard metal, cermet, ceramic or steel base body and at least one coating deposited thereon. This single coating or in the event that there are several layers, the outer layer or the layer below the outer layer, consists essentially of molybdenum sulphide. The invention also relates to a method for producing the molybdenum sulphide coating by chemical vapour deposition. According to the invention, the molybdenum sulphide coating contains a mixture of the sulphide phases MoS2 and Mo2S3 with an essentially random orientation (isotropic orientation) of the phase crystals. The coating is applied by means of a chemical vapour deposition procedure.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.