Face miller and use thereof

US8979447B2 · kind B2 · utility

Assignee

• Guehring OHG · DE

Inventor

• Lutfi Bozkurt · Winterlingen, DE

Key dates

• Filing date: Aug 23, 2012
• Grant date: Mar 17, 2015
• Expiry date: Aug 23, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T409/303808
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

The face miller is equipped with a plurality of plate-shaped hard material cutting inserts that are distributed over the circumference. The hard material cutting inserts are located on a graduated circle in pockets of a blade carrier and have a main cutting edge, which is adjusted at a cutting edge angle smaller than 90° relative to the working plane of the miller. In order to ensure maximum machining performance at a good service life, the cutting edge angle is selected to range between 10° and 30°, wherein the main cutting edge at the same time has a slightly convex design. The main cutting edge transitions into the secondary cutting edge via a transition radius having a value that ranges between 0.5 and 1.5 mm. The axial rake angle ranges between 20 and 30°. According to an advantageous further development, the radial rake angle ranges between −6° and −10°.