Induction Brazing Alloy to Wire

Objective
The goal of this test application is braze alloy to wire with induction while the wire remains as short as possible.

Equipment
UPT-S5, Ultraheat 5 kW Power Supply
HS-4 Heat Station
Plate concentrated coil

Materials
• Brazing paste (easy-flo 45)

Key Parameters
Power: 2.4 kW
Time: 4 Seconds

Process:

  1. The first step of induction brazing alloy to wire, is to pre-tin the wires with paste using a torch.
  2. The alloys tips were cut as short as possible, and the brazing paste was placed on the contacts. (see figure 1)
  3. After preparing the wire, they were secured to the heater contacts which was going through the coil. (see figure 2)
  4. The induction unit was run for 4 seconds to complete the braze. (see figure 3)

Results/Benefits:
Induction heating provides:

  • Strong durable joints
  • Selective and precise heat zone, resulting in less part distortion and joint stress than welding
  • Less oxidation
  • Faster heating cycles
  • More consistent results and suitability for large volume production, without the need for batch processing
  • Safer than flame brazing

Pictures

Brazing Wire
brass brazing wire
welding steel wire together
braze welding equipment
induction heat treating

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