ChampionX has been granted a patent for a method involving laser ablation of cemented carbide substrates to form selected shapes. The process includes infiltrating diamond particles with a metal-solvent catalyst to create a polycrystalline diamond table bonded to the substrate. GlobalData’s report on ChampionX gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on ChampionX, ChampionX's grant share as of March 2024 was 75%. Grant share is based on the ratio of number of grants to total number of patents.
Method for laser ablating cemented carbide substrate into shape
A recently granted patent (Publication Number: US11958133B1) discloses a method for forming a polycrystalline diamond table bonded to a cemented carbide substrate. The method involves laser ablating selected regions of the substrate to shape it, enclosing diamond particles and the substrate in a pressure transmitting medium, and subjecting the assembly to high temperature and pressure to catalyze the formation of the diamond table. The process allows for the creation of complex shapes, including non-planar surfaces and recesses with undercut regions, by uploading instructions into a controller connected to the laser.
Furthermore, the method includes additional steps such as leaching the metal-solvent catalyst from the diamond table, shaping the upper surface of the diamond table, and selecting the appropriate cemented carbide substrate before laser ablation. The patent also details specific parameters for the laser pulses, such as power and frequency ranges, to achieve the desired results. The non-planar surfaces of the substrate can include protrusions, recesses, dovetail joints, or identifying indicia, offering versatility in the final product. This innovative method opens up possibilities for creating customized polycrystalline diamond structures with unique features bonded to cemented carbide substrates for various applications.
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GlobalData’s Patent Analytics tracks patent filings and grants from official offices around the world. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
