Invention Grant
- Patent Title: Cutting elements with wear resistant diamond surface
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Application No.: US14475311Application Date: 2014-09-02
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Publication No.: US10100583B2Publication Date: 2018-10-16
- Inventor: Yi Fang , J. Daniel Belnap , Scott L. Horman , Ryan Davis , Haibo Zhang
- Applicant: SMITH INTERNATIONAL, INC.
- Applicant Address: US TX Houston
- Assignee: SMITH INTERNATIONAL, INC.
- Current Assignee: SMITH INTERNATIONAL, INC.
- Current Assignee Address: US TX Houston
- Main IPC: E21B10/56
- IPC: E21B10/56 ; E21B10/46 ; B24D99/00 ; B24D3/10 ; B24D18/00
Abstract:
Cutting elements include polycrystalline diamond which may be attached to a substrate. The polycrystalline diamond may have a ratio of cubic to hexagonal cobalt crystalline structures of greater than about 1.2. The polycrystalline diamond may have a high level surface compressive stress of greater than about 500 MPa.
Public/Granted literature
- US20150060151A1 CUTTING ELEMENTS WITH WEAR RESISTANT DIAMOND SURFACE Public/Granted day:2015-03-05
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