Leached superabrasive elements and systems, methods and assemblies for processing superabrasive materials
US11253971B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2018 |
| Grant date | Feb 22, 2022 |
| Priority date | — |
| Expiry date | Sep 18, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C17/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of processing a superabrasive element includes providing a superabrasive element including a polycrystalline diamond table that includes a metallic material disposed in interstitial spaces defined within the polycrystalline diamond table. The polycrystalline diamond table includes a superabrasive face and a superabrasive side surface extending around an outer periphery of the superabrasive face. The method also includes leaching the metallic material from at least a volume of the polycrystalline diamond table to produce a leached volume in the polycrystalline diamond table by (1) exposing at least a portion of the polycrystalline diamond table to a processing solution, (2) exposing an electrode to the processing solution, and (3) applying a charge to the electrode such that a voltage is generated between the polycrystalline diamond table and the electrode and the voltage is applied to the processing solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.