Braze Brass

Objective
The customer currently outsources the process to braze brass fittings into the brass housing. The cost of this outside processing is $30 per part. By in-sourcing, the part cost will be reduced, and the customer can also avoid delays in the outsourcing process.

Equipment
Ultraheat UPT-S2 Power Supply
HS-4 Heat Station

Materials
• Silver brazing preform
• Stay-Silv brazing flux

Key Parameters
Temperature: Approximately 1250°F (677°C)
Power: 1.98 kW
Time: 150 seconds

Process:

  1. Braze Brass Fittings into Brass Housing: the barb fittings are positioned into the housing, with a pre-form placed at the position of the joint.
  2. The assembly is then positioned into the induction coil.
  3. At approximately 2:15, a small amount of brazing alloy is added by hand during the heating, to fill the opening not covered by the preform. A production preform would completely encircle the part, and not have a gap.
  4. The finished braze, shows a consistent fillet at the braze joint.

Results/Benefits:

Enables in-sourcing of an assembly process that has been done by a supplier. Avoids costly delays in processing.

  • Precise control of the time and temperature
  • Power on demand with rapid heat cycles
  • Repeatable process, not operator dependent
  • Safe heating with no open flames
  • Energy efficient heating

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