Coated cutting insert for milling applications

US8192793B2 · kind B2 · utility

Assignee

• Seco Tools AB · SE

Inventors

• Anna Sandberg · Sala, SE
• Andreas Larsson · Kalmar, SE
• Tommy Larsson · Ludvika, SE

Key dates

• Filing date: Sep 16, 2011
• Grant date: Jun 5, 2012
• Expiry date: Sep 16, 2031

Classification

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

Abstract

Coated cemented carbide inserts are particularly useful for wet or dry milling steels. The inserts are formed by a cemented carbide body including WC, NbC and a W-alloyed Co binder phase, and a coating including an innermost layer of TiCxNyOz, with equiaxed grains, a layer of TiCxNyOz with columnar grains and a layer of α-Al2O3.