Thick pointed superhard material
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United States of America Patent
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Feb 7, 2012
Grant Date -
Feb 26, 2009
app pub date -
Feb 12, 2007
filing date -
Oct 26, 2006
priority date (Note) -
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Abstract
In one aspect of the invention, a high impact resistant tool includes a superhard material bonded to a cemented metal carbide substrate at a non-planar interface. The superhard material has a substantially pointed geometry with a sharp apex having a radius of curvature of 0.050 to 0.125 inches. The superhard material also has a thickness of 0.100 to 0.500 inches thickness from the apex to a central region of the cemented metal carbide substrate.
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