SUPERABRASIVE ELEMENTS AND METHODS FOR PROCESSING AND MANUFACTURING THE SAME USING PROTECTIVE LAYERS

摘要

A method of processing a polycrystalline diamond element includes forming a protective layer over a selected portion of a polycrystalline diamond element, the polycrystalline diamond element having a polycrystalline diamond table that includes a superabrasive face, a superabrasive side surface, and a chamfer extending between the superabrasive face and the superabrasive side surface. A portion of the superabrasive side surface is covered by the protective layer and the protective layer is not formed over the chamfer. The method includes exposing at least a portion of the polycrystalline diamond element to a leaching solution. A polycrystalline diamond element has a polycrystalline diamond table that includes a leached volume extending from the superabrasive face to a portion of the chamfer proximate to the superabrasive side surface, and the leached volume does not substantially extend along the superabrasive side surface.

主权项

1. A method of processing a polycrystalline diamond element, the method comprising:
forming a protective layer over a selected portion of a polycrystalline diamond element, the polycrystalline diamond element comprising a polycrystalline diamond table comprising:
a superabrasive face;a superabrasive side surface;a chamfer extending between the superabrasive face and the superabrasive side surface; exposing at least a portion of the polycrystalline diamond element to a leaching solution such that the leaching solution contacts an exposed surface region of the polycrystalline diamond table and at least a portion of the protective layer; wherein:
a portion of the superabrasive side surface is covered by the protective layer;the protective layer is not formed over the chamfer.