Ambrell Induction Heating
Ambrell Induction Heating
heating a steel plate

7 Benefits of Induction Preheating When Brazing Drill Bits

Oct 27, 2015 10:16:06 AM / by Brett Daly

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

A drill bit that was preheated with induction


Induction heating is a comparatively rapid, efficient method of preheating the drill bit to 600 °C (1100 °F) in preparation for torch brazing of the diamond inserts. The key benefits of induction preheating include:

  • Safety: no preheating with an open flame or a hot furnace.
  • Better efficiency: instant on, instant off heating, no long flame or oven heating.
  • Throughput: induction heating reduces preheat time.
  • Better quality with braze temperature control.
  • Repeatability: you can count on a precise, consistent quality braze every time.
  • Easy integration into lean manufacturing processes.
  • Small footprint: frees up valuable factory floor space.
For more information check out our full brochure. Contact us today if you have any questions.
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Topics: Brazing Drill Bits, Induction Brazing, Preheating

Written by Brett Daly


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