Means to secure cutting elements on drag type drill bits
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United States of America Patent
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-
Mar 3, 1987
Grant Date -
N/A
app pub date -
Oct 24, 1985
filing date -
Oct 24, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A metal matrix (53) of a blade (30) on a drag-type rotary drill bit (10) is formed about a plurality of diamond cutting elements (56) so that the entire surface areas of the cutting faces (62) are exposed and engage the formation to be cut in a drilling operation. The cutting elements (56) are secured by a mechanical interlocking bond or attachment (68, 70) between the cutting elements (56) and matrix (53) without utilizing the cutting faces (62) for securement.
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