Coatings for cutting tools

US9181620B2 · kind B2 · utility

Assignee

• KENNAMETAL INC. · US

Inventors

• Karl Heinz Wendt · Ebermannstadt, DE
• Volkmar Sottke · Bad Hersfeld, DE
• Peter R. Leicht · Latrobe, US
• Yixiong Liu · Greensburg, US
• Mark S. Greenfield · Greenville, US
• Hartmut Westphal · Dermbach, DE

Key dates

• Filing date: Mar 20, 2014
• Grant date: Nov 10, 2015
• Expiry date: Mar 20, 2034

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/265
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

In one aspect, cutting tools are described having coatings adhered thereto which, in some embodiments, can demonstrate desirable wear resistance and increased cutting lifetimes. A coated cutting tool, in some embodiments, comprises a substrate and a coating adhered to the substrate, the coating comprising at least one Zr doped layer deposited by chemical vapor deposition comprising ZrAl2O3.