Carbide cutting insert

C - Chemistry – Metallurgy – 23 – C

Patent

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Details

C23C 30/00 (2006.01) C23C 28/04 (2006.01)

Patent

CA 2677554

Cutting tools and cutting inserts having a wear resistant coating on a substrate comprising a metal carbide particle and a binder. For certain applications, a cutting insert having a wear resistant coating comprising hafnium carbon nitride and a binder comprising ruthenium may provide a greater service life. The wear resistant coating comprising hafnium carbon nitride may have a thickness of from 1 to 10 microns. In another embodiment, the cutting tool comprises a cemented carbide substrate with a binder comprising at least one of iron, nickel, and cobalt.

L'invention concerne des outils de coupe et des inserts de coupe ayant un revêtement résistant à l'usure sur un substrat comportant une particule de carbure métallique et un liant. Pour certaines applications, un insert de coupe ayant un revêtement résistant à l'usure, comportant du nitrure de carbone et d'hafnium et un liant comportant du ruthénium, peut fournir une durée de vie supérieure. Le revêtement résistant à l'usure comportant du nitrure de carbone et d'hafnium peut avoir une épaisseur de 1 à 10 microns. Dans un autre mode de réalisation, l'outil de coupe comporte un substrat au carbure cémenté avec un liant comportant au moins l'un parmi le fer, le nickel et le cobalt.

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