Beschichtetes Schneidwerkzeug

Details

Veröffentlichungs-Nr.

EP3929328

Aktenzeichen

EP21181454

Anmeldetag

24. Juni 2021

Veröffentlichung

12. Juni 2024

Erteilung

12. Juni 2024

Rechtsraum

EP

IPC

C23C28/00C23C28/04C23C30/00C23C14/00C23C14/06C23C14/32

Abstract

A coated cutting tool comprises a substrate and a coating layer formed on a surface of the substrate, and has a rake face and a flank. The coating layer comprises an alternating laminate structure in which first compound layers containing AIN and second compound layers containing a compound are laminated in an alternating manner, the compound having a composition represented by formula (1) below: (Ti<1-x>Al<x>)N ... (1) (wherein x satisfies 0.40 ≤ x ≤ 0.70). An average thickness T<1> per first compound layer is 5 nm or more to 160 nm or less, and an average thickness T<2> per second compound layer is 8 nm or more to 200 nm or less. A ratio of T<1> to T<2> is 0.10 or more to 0.80 or less. An average thickness T<3> of the alternating laminate structure is 2.5 µm or more to 7.0 µm or less. A ratio (H/E) of hardness H to elastic modulus E is 0.065 or more to 0.085 or less at the rake face or the flank.

Anmelder

Firma

Tungaloy Corporation

Land

🇯🇵 Japan

Fachgebiete