Tool component

Details Tool component Tool component

E - Fixed Constructions

21

C

E21C 35/18 (2006.01) E21B 10/46 (2006.01) E21B 10/56 (2006.01) E21C 35/183 (2006.01)

Patent

CA 2180312

A tool component is provided which has particular application in mining picks and drag bits. The component comprises an abrasive compact having a flat working surface presenting a cutting edge around its periphery, and an opposite surface bonded to a cemented carbide substrate along an interface. A recess is provided which extends into the abrasive compact from the interface and is filled with abrasive compact. The recess has a central portion and an outer portion which completely surrounds, and is shallower than the central portion. The central portion defines, in plan, at least one substantially wedge-shaped configuration, the configuration having a narrow end coincident with a side surface of the component and the sides extending into the component and diverging from the narrow end.

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