Coated inserts for rough milling

USRE39912E1 · kind E1 · reissue

Assignee

• Sandvik Intellectual Property AB · SE

Inventors

• Anders Nordgren · Nacka, SE
• Ingemar Hessman · Sandviken, SE
• Marian Mikus · Härnösand, SE

Key dates

• Filing date: Jun 9, 2006
• Grant date: Nov 6, 2007
• Expiry date: Jun 9, 2026

Classification

• Technology area (CPC —): General

Abstract

Coated milling insert has a WC-Co cemented carbide with a low content of cubic carbides and a highly W-alloyed binder phase and a coating including an inner layer of TiCxNy with columnar grains followed by a layer of κ-Al2O3 and a top layer of TiN. The coated milling insert is particularly useful for milling of grey cast iron with or without cast skin under wet conditions at low and moderate cutting speeds and milling of nodular cast iron and compacted graphite iron with or without cast skin under wet conditions at moderate cutting speeds.