Milling cap for a polycrystalline diamond compact cutter

Details Milling cap for a polycrystalline diamond compact cutter Milling cap for a polycrystalline diamond compact cutter

E - Fixed Constructions

21

B

E21B 10/43 (2006.01)

Patent

CA 2753854

A PDC cutter includes a diamond table layer and an underlying substrate layer. A cap structure for the PDC cutter includes a first portion overlying, but not attached to, a front face of the diamond table layer and a second portion extending perpendicularly from the first portion which is overlying and attached to an outer peripheral surface of the underlying substrate layer.

L'invention concerne un élément de coupe en PDC comprenant une couche de table de diamant polycristallin et une couche de substrat sous-jacente. Une structure de protection destinée à l'élément de coupe en PDC comprend une première partie recouvrant une face avant de la couche de table de diamant, mais non fixée à cette face avant, et une seconde partie s'étendant perpendiculairement depuis la première partie qui recouvre et est fixée à une surface périphérique extérieure de la couche de substrat sous-jacente.

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