Schneidwerkzeug

Details

Veröffentlichungs-Nr.

EP4019165

Aktenzeichen

EP20216552

Anmeldetag

22. Dezember 2020

Veröffentlichung

7. August 2024

Erteilung

7. August 2024

Rechtsraum

EP

IPC

B22F7/06B24D3/06C04B35/52C04B35/5831C04B37/02C22C1/051C22C5/08C22C26/00C22C29/06C22C29/08// B22F5/00B23B27/14B23K101/00B23P15/28

Abstract

The present invention relates to a cutting tool comprising a supporting body and a cBN, or PCD, cutting edge tip, wherein the cBN, or PCD, cutting edge tip is attached to the supporting body via a 5-150 µm thick braze joint, the supporting body is of cemented carbide comprising 3-25 wt% of a metallic binder, optionally up to 25 wt% of carbides or carbonitrides of one or more elements of group 4, 5, or 6 in the periodic table of elements, and rest WC, wherein the metallic binder comprises at least 40 wt% Ni, and wherein said braze joint comprises, in the order from the supporting body, a first layer of TiC situated next to the supporting body with an average thickness of 10-400 nm, a second layer, with an average thickness of 0.5-8 µm, comprising in average at least 5 wt% metallic Ni, in average 25-60 wt% metallic Cu and in average 15-45 wt% metallic Ti, and a third layer, with an average thickness of 4-145 µm, comprising metallic Ag and metallic Cu.

Anmelder

Firma

AB Sandvik Coromant

Land

🇸🇪 Schweden

Fachgebiete