Leached superabrasive elements and systems, methods and assemblies for processing superabrasive materials

A method of processing a polycrystalline diamond body, the method comprising:

• positioning an electrode near a polycrystalline diamond body such that a gap is defined between the electrode and the polycrystalline diamond body, the polycrystalline diamond body comprising a metallic material disposed in interstitial spaces defined within the polycrystalline diamond body;
• applying a voltage between the electrode and the polycrystalline diamond body, wherein the electrode is a cathode and the polycrystalline diamond body is an anode;
• pumping a processing solution to cause flow of the processing solution into an internal passage extending through the electrode in a vertical direction toward the polycrystalline diamond body and discharge of the processing solution at an opposing end of the internal passage extending through the electrode and into and along the gap, the processing solution being discharged at a flow rate of between approximately 1 L/min and approximately 100 L/min.

A method of processing a polycrystalline diamond body, the method comprising:

• positioning an electrode near a polycrystalline diamond body such that a gap is defined between the electrode and the polycrystalline diamond body, the polycrystalline diamond body comprising a metallic material disposed in interstitial spaces defined within the polycrystalline diamond body;
• applying a voltage between the electrode and the polycrystalline diamond body, wherein the electrode is a cathode and the polycrystalline diamond body is an anode;
• pumping a processing solution to cause pressurized flow of the processing solution within an internal passage extending through the electrode and discharge of the processing solution, wherein the pumping comprises creating a pressure of about 0.5 bar to about 20 bar.