Coated cutting insert

USRE40005E1 · kind E1 · reissue

Assignee

• Sandvik Intellectual Property AB · SE

Inventors

• Åsa Kutscher · Alvesta, SE
• Kenneth Westergren · Åtvidaberg, SE
• Bjorn Ljungberg · Stuvsta-Snättringe, SE
• Anders Lenander · Tyresö, SE

Key dates

• Filing date: Jun 9, 2006
• Grant date: Jan 15, 2008
• Expiry date: Jun 9, 2026

Classification

• Technology area (CPC —): General

Abstract

There is disclosed a coated cutting insert particularly useful for cutting in cast iron materials. The insert is characterized by a straight WC-Co cemented carbide body having a highly W-alloyed Co binder phase, a well-defined surface content of Co and a coating including an innermost layer of TiCxNyOz with columnar grains, a layer of a fine-grained, textured Al2O3 layer and a top layer of TiCxNyOz that has been removed along the cutting edge line.