Cutting blank with diamond strips in grooves
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 3, 1986
Grant Date -
N/A
app pub date -
Oct 4, 1984
filing date -
Oct 4, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cutting blank, preferably for use on a drill bit for cutting through earth formations, comprises a substrate formed of a hard material and including a cutting surface. A plurality of shallow grooves are formed in the cutting surface and each groove includes opposing side and base portions. Strips of a diamond substance are disposed in the grooves and are adhered to the side and base portions and include a cutting face exposed adjacent to the cutting surface of the substrate. The strips may be arranged in various patterns and may be in non-intersecting relationship, or intersecting relationship. The grooves may include undercut portions to more positively anchor the strips to the substrate. The cutting blank is preferably bonded to a stud, with the stud being mounted in a rotary drill bit.
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Cited Art Landscape
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