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US 12,474,685 B2Granted
Method of machining articles from a superhard disc
AssigneeElement Six Limited
InventorsEric Curry, James McNamara
Life of this patent
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Abstract
This disclosure relates to a method of machining articles from a disc comprising superhard material, such as polycrystalline diamond (PCD) or polycrystalline cubic boron nitride (PCBN). The method includes providing a disc having a diameter of no more than 100 mm and a thickness of no more than 10 mm, providing a nesting pattern, scanning the disc to identify and locate any flaws in the disc and subsequently creating a machining program that takes into account said flaws.
Claims16
A method of machining articles from a disc comprising superhard material, the method comprising:
- Providing the disc to be machined, the disc having a diameter of no more than 100 mm and a thickness of no more than 10 mm;
- Providing a nesting pattern comprising one or more articles to be machined from the disc;
- Scanning the disc to identify non-defective and/or defective portions, said defective portions containing any one of more of the following:
- microstructural flaws, scratches, and compositional contaminants;
- Overlaying the nesting pattern onto defective and/or non-defective portions of the disc that were identified during scanning to create a first machining program;
- Machining the one or more articles out of the disc according to the first machining program, wherein scanning the disc comprises ultrasonically scanning the disc to generate ultrasonic scan data.
3 more elements
Dependencies are inferred from the claim text.