Method for forming diamond cutting elements for a diamond drill bit
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United States of America Patent
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Feb 5, 1991
Grant Date -
N/A
app pub date -
Aug 30, 1989
filing date -
Aug 30, 1989
priority date (Note) -
Expired
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Abstract
A method of forming hemispherically shaped diamond cutting elements for use in a rotary drill bit is provided. The method includes identifying a cleaving plane in a diamond and a perpendicular axis, polishing the diamond to form a series of truncated cones approximating a hemisphere around said axis, and cleaving the diamond to form a cutting face.
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