What looks like small weld beads on the bit are a carbide material precisely applied to not only the leading face, but also the outer and inner gauge where bit wear commonly occurs.
Throughout the years Geoprobe® has accumulated feedback on how sonic bits wear during their lifetime. Our tooling engineers took this information and strategically placed carbide material along prevalent wear patterns on the sonic bit in order to reduce wear.
The Computer Numerical Control (CNC) laser applies a flowable powder comprised of a proprietary blend of spherical carbide elements mixed with a Cobalt binder. Injected directly into the beam of the laser, the powder forms an ultra-hard deposit on the bit. Significantly harder than the overall bit body material, the carbide material slows down the rate of wear on the bit body.
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What looks like small weld beads on the bit are a carbide material precisely applied to not only the leading face, but also the outer and inner gauge where bit wear commonly occurs.