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Induction Braze Copper and Brass Lap Joint

Home/Induction Heating Applications/Induction Brazing/Induction Braze Copper and Brass Lap Joint
Induction Braze Copper and Brass Lap Joint 2017-04-12T12:51:51+00:00

Induction brazing copper to copper lap joint.

Objective
The objective of the application test is to braze copper and brass lap joints with induction to replace torch operation. Lap joints may be brass to brass or copper to copper.
The current torch process results in excessive contaminants on the assembly and requires extensive rework after the brazing operation.

Equipment
UltraFlex UPT-W10/150
HS-8 Heat Station
Ear muff coil

Materials
Copper and brass coupon plates
• Braze alloy – EZ Flo 45

Key Parameters – Copper plates
Power: 9 kW
Heat to Temp: Approximately 1350° F (732° C)
Time: Average time – 4 minutes
Frequency: 87 kHz

Process and Results:

  1. EZ Flo 45 braze wire was cut into 2” lengths and placed in the interface area.
  2. The assemblies were set up (see photos) and heated with induction for an average time of 4 minutes to flow the alloy and achieve the braze.

Key Parameters – Brass coupon plates
Power: 7.8 kW
Heat to temp: Approximately 1350° F (732° C)
Time: Average time – 4 minutes
Frequency: 87 kHz

Process and Results:

  1. EZ Flo 45 braze wire was cut into 2” lengths and placed in the interface area.
  2. The assemblies were set up (see photos) and heated for an average time of 4 minutes to flow the alloy and achieve the braze.

Pictures

Video

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