Brazing Inserts with Induction Heating:

Improved Safety and Efficiency for Drilling Tools

brazing drill bit image

Induction preheating for brazing or de-brazing offers numerous benefits:

  • Safety: no preheating with open flame or hot furnace
  • Better efficiency: instant on, instant off, no long flame or oven heating
  • Throughput: induction heating reduces preheat time
  • Better quality with braze temperature control
  • Repeatability: get a precise, consistent quality braze every time
  • Easy Integration into a lean manufacturing process
  • Small Footprint: frees up valuable factory floor space

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Oil and Gas Well Drill Bits

In down hole fixed cutter, rock, or hammer drill bit manufacturing and rebuild operations, 40-60 tool inserts are individually brazed onto a single drill bit. These inserts may be a polycrystalline diamond compact (PDC) or tungsten carbide insert (TCI).

Induction heating is an excellent technique for preheating the drill bit to 600°C (1100°F) in preparation for the torch brazing of the diamond inserts.