Cutter element and cutter for rock drilling
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United States of America Patent
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-
Jun 8, 1982
Issued Date -
N/A
app pub date -
Feb 11, 1980
filing date -
Oct 2, 1978
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A fixed cutting tool shape for improved rock drilling performance of drag-type rotary bits includes a cemented tungsten carbide cutter body and a plow-shaped cutter element. In a preferred embodiment, the cutter element is a composite compact of polycrystalline diamond on a cemented tungsten carbide substrate, and defines a generally V-shaped cutter to create a plowing action and direct rock ship flow away from the working surface.
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