End mill

US11400528B2 · kind B2 · utility

Assignee

• Guehring KG · DE

Inventors

• Christian Gauggel · Heinstetten, DE
• Marius-Bogdan Bozga · Suciu de Jos, RO

Key dates

• Filing date: Mar 24, 2020
• Grant date: Aug 2, 2022
• Expiry date: Mar 24, 2040

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02W30/62
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

An end mill for milling composite materials, for example, fiber-reinforced plastics, having a defined rotating direction, a shank and a cutting part that extends from a shank-side end up to a frontal end and in a front length region adjoining the frontal end of the cutting part, has a plurality of first circumferential cutters running with a positive helix angle, each of which adjoins a first groove running with a positive helix angle, and in a rear length region adjoining the shank-side end of the cutting part, has a plurality of second circumferential cutters running with a negative helix angle, each of which adjoins a second groove running with a negative helix angle. At least a part of the first circumferential cutters in the front length region, and at least a part of the second circumferential cutters in the rear length region, are each divided into cutting segments.