Schneideinsatz und Bearbeitungsverfahren

Details

Veröffentlichungs-Nr.

EP4721898

Anmeldetag

31. Mai 2023

Veröffentlichung

5. Dezember 2024

Rechtsraum

EP

IPC

B23B27/14, B23B1/00, B23B27/20B23B27/14

Abstract

A cutting insert includes a rake face (50), a flank face (70), and a cutting edge (10) constituted of a ridgeline (20) between the rake face and the flank face. The cutting edge has a first cutting edge portion (1) for corner processing, a second cutting edge portion (2) for low cut-in pulling processing, a third cutting edge portion (3) for high cut-in pulling processing, a fourth cutting edge portion (4) for finished-surface processing, a first connection cutting edge portion, a second connection cutting edge portion, and a third connection cutting edge portion. The fourth cutting edge portion is disposed between the first cutting edge portion and the second cutting edge portion. The second cutting edge portion is disposed between the fourth cutting edge portion and the third cutting edge portion. Each of the first cutting edge portion, the second cutting edge portion, and the fourth cutting edge portion has a curved shape. A curvature radius of the first cutting edge portion is 0.1 mm or more and 2.4 mm or less. A curvature radius of the second cutting edge portion is 3 mm or more. A curvature radius of the fourth cutting edge portion is 3 mm or more. The third cutting edge portion has a straight line shape.

Anmelder

Firma

Sumitomo Electric Hardmetal Corp.

Land

🇯🇵 Japan

Fachgebiete