Systems, methods and assemblies for processing superabrasive materials
View Patent ↗A method of processing a polycrystalline diamond material includes exposing at least a portion of a polycrystalline diamond material to a processing agent for processing at least a portion of the polycrystalline diamond material. The method further includes applying a body force to the volume of processing agent while at least the portion of the polycrystalline diamond material is exposed to the processing agent, and heating at least one of the processing agent and at least the portion of the polycrystalline diamond material exposed to the processing agent during application of the body force to the processing agent.
1. A method of processing a polycrystalline diamond material, the method comprising:
exposing at least a portion of a polycrystalline diamond material to a processing agent for removing at least a portion of an interstitial material;
applying an elevated body force to the processing agent while at least the portion of the polycrystalline diamond material is exposed to the processing agent, the body force comprising at least one of a gravitational body force and a centrifugal body force;
heating at least one of the processing agent and at least the portion of the polycrystalline diamond material exposed to the processing agent during application of the elevated body force.
2. The method of claim 1 , wherein the processing agent comprises a leaching agent for leaching a metallic material from interstitial spaces within at least the portion of the polycrystalline diamond material.
3. The method of claim 1 , wherein the processing agent comprises a cleaning agent for cleaning at least the portion of the polycrystalline diamond material.
4. The method of claim 1 , wherein:
the processing agent comprises a liquid solution;
the elevated body force is sufficient to prevent a phase change of the liquid solution during heating.
5. The assembly of claim 1 , wherein the heating comprises a heating to a temperature greater than a temperature required for a phase change of the liquid solution under atmospheric conditions.
6. The method of claim 1 , wherein applying the elevated body force comprises rotating the processing agent and the polycrystalline diamond material about a rotational axis.
7. The method of claim 1 , wherein applying the elevated body force comprises disposing another fluid gravitationally above the processing agent.
8. The method of claim 7 , wherein the other fluid has a density greater than the density of the processing agent.
9. The method of claim 7 , wherein:
the polycrystalline diamond material, the processing agent, and the other fluid are disposed within a container;
the other fluid has a height within the container greater than a height of the processing agent within the container.
10. The method of claim 7 , wherein the other fluid contacts the processing agent.
11. The method of claim 7 , wherein the other fluid is open to atmospheric surroundings.
12. The method of claim 1 , further comprising disposing a protective barrier around a portion of the polycrystalline diamond material.
13. The method of claim 1 , wherein the polycrystalline diamond material comprises a polycrystalline diamond body bonded to a substrate.
14. An assembly for processing a polycrystalline diamond body, the assembly comprising:
a processing container;
at least one polycrystalline diamond body disposed in the processing container;
a volume of processing agent disposed in the processing container, at least a portion of the polycrystalline diamond body being exposed to the processing agent, the processing agent processing at least a portion of the polycrystalline diamond body;
a body force application portion for applying an elevated body force to the processing agent while at least the portion of the polycrystalline diamond body is exposed to the processing agent, the body force comprising at least one of a gravitational body force and a centrifugal body force;
a heating element for increasing a temperature of at least one of the processing agent and at least the portion of the polycrystalline diamond body exposed to the processing agent during application of the elevated body force to the processing agent.
15. The assembly of claim 14 , wherein:
the processing agent comprises a liquid solution;
the elevated body force is sufficient to prevent a phase change of the liquid solution during heating.
16. The assembly of claim 14 , wherein the body force application portion comprises a centrifugal device for rotating the processing container about a rotational axis.
17. The assembly of claim 14 , wherein the body force application portion comprises a fluid conduit containing another fluid disposed gravitationally above the processing agent.
18. The assembly of claim 17 , wherein the fluid conduit extends in a vertical direction.
19. The assembly of claim 17 , wherein the other fluid has a density greater than the density of the processing agent.
20. The assembly of claim 17 , wherein the other fluid has a height within the fluid conduit greater than a height of the processing agent within the fluid conduit.
21. The assembly of claim 17 , wherein an end of the fluid conduit disposed apart from the processing container comprises an opening such that the other fluid is open to atmospheric surroundings.
22. The assembly of claim 14 , further comprising a protective barrier disposed around a portion of the polycrystalline diamond body.