US 12,296,435 B2
Leached superabrasive elements and systems, methods and assemblies for processing superabrasive materials
Daniel Marin Scott, Laie, HI (US); Daren Nathaniel Heaton, Spanish Fork, UT (US); Jeremy Brett Lynn, Nephi, UT (US); Mark Pehrson Chapman, Provo, UT (US); and Oakley D. Bond, Nephi, UT (US)
Assigned to US Synthetic Corporation, Orem, UT (US)
Filed by US Synthetic Corporation, Orem, UT (US)
Filed on Sep. 21, 2023, as Appl. No. 18/371,298.
Application 18/371,298 is a continuation of application No. 16/993,055, filed on Aug. 13, 2020, granted, now 11,766,761.
Application 16/993,055 is a continuation in part of application No. 16/020,751, filed on Jun. 27, 2018, granted, now 11,253,971, issued on Feb. 22, 2022.
Application 16/020,751 is a continuation of application No. 14/864,152, filed on Sep. 24, 2015, granted, now 10,011,000, issued on Jul. 3, 2018.
Claims priority of provisional application 62/062,553, filed on Oct. 10, 2014.
Prior Publication US 2024/0009808 A1, Jan. 11, 2024
Int. Cl. B24D 3/00 (2006.01); B24D 3/10 (2006.01); B24D 18/00 (2006.01); B24D 99/00 (2010.01); C25F 3/02 (2006.01); C25F 7/00 (2006.01); F16C 33/04 (2006.01); F16C 33/26 (2006.01); F16C 17/02 (2006.01); F16C 17/04 (2006.01)
CPC B24D 3/005 (2013.01) [B24D 3/10 (2013.01); B24D 18/00 (2013.01); B24D 18/0009 (2013.01); B24D 99/005 (2013.01); C25F 3/02 (2013.01); C25F 7/00 (2013.01); F16C 33/043 (2013.01); F16C 33/26 (2013.01); B22F 2999/00 (2013.01); F16C 17/02 (2013.01); F16C 17/04 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A superabrasive element comprising:
a polycrystalline diamond table comprising:
a metallic material disposed in interstitial spaces defined within the polycrystalline diamond table;
an unleached volume including the metallic material disposed in the interstitial spaces defined within the polycrystalline diamond table; and
a leached volume where at least some of the metallic material disposed in the interstitial spaces defined within the polycrystalline diamond table has been removed with a leaching process,
wherein at least a portion of a cobalt material has been removed from the metallic material in the interstitial spaces in the leached volume of the polycrystalline diamond table while a tungsten material remains in the interstitial spaces in the leached volume of the polycrystalline diamond table, and
wherein the metallic material in the interstitial spaces in the leached volume of the polycrystalline diamond table includes a ratio of the cobalt material relative to the tungsten material that is greater than a ratio of a cobalt material relative to a tungsten material in the unleached volume of the polycrystalline diamond table.