Web cutter
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United States of America Patent
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Jun 3, 2003
Issued Date -
N/A
app pub date -
Jun 27, 2000
filing date -
Apr 17, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A cutter for a drill bit has a superabrasive member joined to a substrate at a three-dimensional interface. The three-dimensional interface comprises a protrusive pattern of interconnected elements comprising projections of the superabrasive member into the substrate and vice versa. The protrusive pattern comprises at least one generally annular member intersected by a series of generally radially extending members for distributing stresses along the interface, enhancing compressive strength, and enabling optimization of the magnitudes and locations of beneficial residual stresses in the superabrasive member and in the vicinity of the substrate.
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