NON PLANAR CUTTING ELEMENT WITH NON PLANAR INTERFACE DESIGN AND TOOLS INCORPORATING SUCH ELEMENTS

A cutting element may include a substrate having a non-planar upper surface with a peripheral edge, and an ultrahard layer. The upper surface may include at least one depression formed at least proximate the peripheral edge; and a compressive stress hoop extending around the upper surface adjacent t...

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Bibliographic Details
Main Authors Peng, Cheng, Eyre, Ronald K, Yu, Feng
Format Patent
LanguageEnglish
Published 02.12.2021
Subjects
BORING
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
PERFORMING OPERATIONS
TRANSPORTING
TURNING
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Summary:A cutting element may include a substrate having a non-planar upper surface with a peripheral edge, and an ultrahard layer. The upper surface may include at least one depression formed at least proximate the peripheral edge; and a compressive stress hoop extending around the upper surface adjacent the peripheral edge, extending into the at least one depression, and configured to reduce tensile stress in the ultrahard layer. The ultrahard layer may be on the substrate and may have a non-planar top surface and an interface formed between the ultrahard layer and the substrate.
Bibliography:Application Number: US201917290785