Induction Brazing Carbide Onto Steel Part

Induction Brazing Carbide Onto Steel Part

Induction brazing carbide onto steelObjective
Brazing carbide onto steel workpiece

Equipment
DW-UHF-6KW-III Handheld Induction Brazing Heater

Handheld induction brazing heaterKey Parameters
Power: 4kW
Temperature: Approximately 1500°F (815°C)
Time: 16 sec

Materials
Coil- 
2 helical turns (20 mm ID)
1 planar turn (40 mm OD, 13 mm Height)

Carbide- 
13 mm OD, 3 mm wall thickness

Steel piece–
20 mm OD, 13 mm ID

Process:

  1. To demonstrate elimination of “hand feeding” the alloy, we formed the alloy into a ring to tightly fit over the center post tube. This method provides a uniform amount for each cycle, resulting in uniform joints and wetting.
  2. The custom made coil was then placed over the steel piece, where is was set for 14 seconds to heat the alloy.
  3. The alloy was heated at approximately 1500°F (815)°C
  4.  The whole piece is left alone and cooled with ambient air

Results/Benefits:

  • Brazing was successful all in under 20 seconds with 3kW
  • High quality and repeatability of the brazed joints
  • Increased productivity
  • Rings will need to be developed for specific joints to prevent the use of too much alloy
  • Precise control of the time and temperature

Induction brazing carbide to steelbrazing carbide onto steel

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