End milling cutter and method for the production thereof

US11738396B2 · kind B2 · utility

Assignee

• Guehring KG · DE

Inventors

• Rolf Ehrler · Teningen, DE
• Martin Dallmann · Chemnitz, DE
• Jakob Ebel · Inzigkofen, DE

Key dates

• Filing date: Sep 16, 2020
• Grant date: Aug 29, 2023
• Expiry date: Jan 27, 2041

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B24B3/06
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A milling tool comprising a cylindrical shaft part, which has a central axis and which is followed by a cylindrical cutting part comprising at least three circumferential cutting edges, which run helically and which are separated from one another by chip grooves. The circumferential cutting edges continue via cutting edge corner regions in end cutting edges, which run essentially radially and which subsequently slope away from the milling cutter face towards the central axis from radially outer end cutting edge sections, in each case with a cutting edge section, which is formed by ground-in end pockets. The cutting edge section slopes continuously all the way to the central axis. In the region of the milling cutter core, it is formed by a point thinning, which is introduced into the end pocket and by means of which a center cutting edge is created. Also, a method for producing the milling tool.