Milling insert

US10300538B2 · kind B2 · utility

Assignee

• Sandvik Intellectual Property AB · SE

Inventors

• Amil Oprasic · Sandviken, SE
• Leif Widin · Sandviken, SE
• Stefan Roman · Sandviken, SE
• Lennart Wihlborg · Ockelbo, SE

Key dates

• Filing date: Nov 14, 2016
• Grant date: May 28, 2019
• Expiry date: Nov 14, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T407/235
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A milling insert, including an upperside, an underside, and a reference plane parallel thereto. A plurality of indexable cutting edges are formed along a peripheral borderline in transitions between at least the upperside and a number of clearance surfaces. Each cutting edge includes a chip-removing main edge and a surface-wiping secondary edge. The main edge, from a first end of the main edge adjacent to the secondary edge, first declines toward the underside of the milling insert and then, from a lowest part, rises toward an opposite second end of the main edge. The secondary edge is inclined at an angle (ε) in relation to the reference plane as viewed perpendicularly to the clearance surface of the secondary edge, such that a first end of the secondary edge connected to the main edge is situated on a lower level than the opposite, second end of the secondary edge.