Cutting tool insert

Details Cutting tool insert Cutting tool insert

B - Operations, Transporting

24

D

B24D 3/06 (2006.01) C22C 29/06 (2006.01) C23C 30/00 (2006.01)

Patent

CA 2266382

A cutting insert which comprises a rake face and a flank face wherein there is a cutting edge at the juncture of the rake face and the flank face. The cutting insert has a coating and a substrate wherein the coating is adherently bonded to the substrate. The substrate is a tungsten carbide-based cemented carbide wherein there is a zone of non- stratified cobalt enrichment beginning near and extending inwardly from a peripheral surface of the substrate. The bulk substrate has a porosity of greater than C00 and less than or equal to C02.

Plaquette rapportée d'outil de coupe comprenant une face de dépouille et un flanc, cette plaquette rapportée comportant un bord coupant à la jonction de la face de dépouille et du flanc, ainsi qu'un revêtement et un substrat, le revêtement étant lié de manière adhésive au substrat. Le substrat est un carbure métallique à base de carbure de tungstène dans lequel une zone d'enrichissement au cobalt non stratifié débute près d'une surface périphérique du substrat et s'étend à l'intérieur de celle-ci. Le substrat de base a une porosité supérieure à C00 et inférieure ou égale à C02.

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