| 摘要 |
A superabrasive cutting element attachable to a drill bit for drilling subterranean formations is formed of a substrate and a superabrasive table with a three-dimensional interface comprising a continuous wave pattern extending about a central axis. Multiple outwardly directed arches of the wave pattern are oriented and configured to preferentially accommodate loading experienced by the cutting element during drilling to absorb and distribute stresses resulting therefrom. Thus, any tendency toward fracture and spalling of the superabrasive table and delamination thereof from the substrate, any of which may induce catastrophic failure of the cutting element, are substantially reduced. A rotary drill bit including such cutting elements is also disclosed.
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