FUNCTIONALLY LEACHED PCD CUTTER

Title:

FUNCTIONALLY LEACHED PCD CUTTER

Document Type and Number:

WIPO Patent Application WO/2012/027263

Kind Code:

A3

Abstract:

A cutting table includes a cutting surface, an opposing surface, a cutting table outer wall, and one or more slots. The cutting table outer wall extends from the circumference of the opposing surface to the circumference of the cutting surface. The slots extend from a portion of the cutting surface to a portion of the cutting table outer wall. The cutting table is leached to form a thermally stable cutting table. One or more slots are positioned in parallel with at least another slot in some embodiments. In some embodiments, the slots are positioned circumferentially around the cutting surface. In some embodiments, at least one slot is backfilled with a backfilling material to increase heat transfer or impact resistance. In some embodiments, the cutting table is coupled to a substrate to form a cutter. The slots are formed either after or during the formation of the cutting table.

Inventors:

BELLIN FEDERICO (US)

Application Number:

PCT/US2011/048599

Publication Date:

March 27, 2014

Filing Date:

August 22, 2011

Export Citation:

Click for automatic bibliography generation Help

Assignee:

VAREL EUROPE SAS (FR)
BELLIN FEDERICO (US)

International Classes:

E21B10/36

Foreign References:

US20060102389A1	2006-05-18
US6258139B1	2001-07-10
US6527069B1	2003-03-04
US20060278442A1	2006-12-14

Other References: