Superabrasive cutter with arcuate table-to-substrate interfaces
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United States of America Patent
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-
Jul 2, 2002
Grant Date -
N/A
app pub date -
Jun 25, 1998
filing date -
Jun 25, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cutter for drilling subterranean formations including a superabrasive table formed on an end face of a supporting substrate, there being an interface between the table and the end face defined by at least one annular surface centered about the centerline of the cutter in a location adjacent the side periphery of the substrate, the annular surface having an arcuate topography of an orientation and radial width sufficient to accommodate resultant loading of the cutting edge of the cutter throughout a variety of angles with vectors normal to the surface at a variety of angles such that at least one normal vector is aligned substantially parallel to the resultant loading on the cutting edge.
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