Cutting insert having a micro ridge chip breaker

US5897272A · kind A · utility

Assignee

• SANDVIK AB · SE

Inventors

• Jorgen Wiman · Sandviken, SE
• Jonas Naslund · Sandviken, SE
• Anders Jonsson · Bromma, SE

Key dates

• Filing date: Feb 28, 1997
• Grant date: Apr 27, 1999
• Expiry date: Feb 28, 2017

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T407/27
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A cutting insert includes a cemented carbide body having two main cutting edges joined by a corner cutting edge. A primary land extends behind the corner and main cutting edges. A chip breaker in the form of a micro ridge projects upwardly from a section of the primary land located in the vicinity of the cutting corner. The primary land has a width in the range of 0.1 to 0.8 mm, and the micro ridge has a width which is between 25 and 80 percent of the width of the primary land.