Resources Contact Us Home
Gauge face inlay for bit hardfacing

Image Number 2 for United States Patent #5904212.

Steel bodies are manufactured in a production process that employs polystyrene patterns in a lost foam casting process. The patterns are machined to permit the formation of complex shapes that cannot be reproduced in simple patterns that are extractable from reusable, two-piece pattern molds or dies. Bit patterns formed in the process have forward canted blades that are machined from mating planar surfaces to simplify the machining process. The edges of the forward canted blades form a spiral surface for mounting cutter elements. The forward canting makes the blades stronger and thus permits the blades to be thinner than non-canted blades to increase the clearance between blades, which improves the movement of the cuttings past the bit. Recesses are machined into the gauge face of the patterns to produce a recess in the casting for receiving hardfacing. The hardfacing in the recess forms a layer that cooperates with the surrounding blade material to form a smooth transition area as the bit wears during usage.

  Recently Added Patents
Electrical connector
Cable sheath
Boring machine
Storage device performance alignment notification
Process for preparing substituted aromatic carboxylic acids
Carbon nanotube fiber spun from wetted ribbon
Method and apparatus for closed-loop control of anti-tachyarrhythmia pacing using hemodynamic sensor
  Randomly Featured Patents
Method and system for improving the latency in a data transmission system
Robe hook
Method of preparing oxide high-temperature superconductor
Medical swab device
Method and system for vehicle trajectory estimation
Method for dominant color setting of video region and data structure and method of confidence measure extraction
Adsorbent for the separation of ethanol from ethyl tert.-alkyl ether
Randomly interrupted breathing device
Fiber optic splicer-connector