OUTIL ET PROCEDE DE COUPE DE ROCHE POUR FORAGES MINIERS ET PETROLIERS

摘要

The invention relates to a rock cutting tool and method of manufacturing the same, which comprises knives (3) comprising a layer (5) of polycrystalline synthetic diamond (PDC), a diamond impregnation layer (6) with diamond particles and cobalt binding, characterized in that the PDC layer is supported directly along a plane interface (8) on the diamond impregnation layer whose interface surface is flat by machining and on which are exposed diamond particles (12).