Textured alumina layer

US9023466B2 · kind B2 · utility

Assignee

• Seco Tools AB · SE

Inventors

• Tommy Larsson · Ludvika, SE
• Mats Johansson · Linköping, SE

Key dates

• Filing date: Jun 7, 2011
• Grant date: May 5, 2015
• Expiry date: Dec 22, 2031

Classification

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

Abstract

A cutting tool insert for machining by chip removal comprising a body of a hard alloy of cemented carbide, cermet, ceramics or cubic boron nitride based material onto which a hard and wear resistant coating is deposited by CVD, and the methods of making and using the same. The coating includes at least one α-Al2O3 layer with a thickness between 0.5 μm and 40 μm having a {01-15} and/or {10-15} texture exhibiting excellent wear and metal cutting performance.