Copper Induction Brazing

Why use induction brazing for copper?

  Induction brazing is a process for joining two metals with a filler material that melts, flows, and wets the metals’ surfaces at a temperature that is lower than the melting temperature of the two metals. Induction brazing for copper has some advantages over other methods, such as:


  • Faster heating cycles and more consistent results
  • Strong durable joints and less oxidation
  • Selective and precise heat zone, resulting in less part distortion and joint stress
  • Energy efficiency and environmental friendliness

  Induction brazing for copper can be used for various applications, such as plumbing, refrigeration, automotive, aerospace, and medical industries.

Why use induction brazing for the copper welding process?

  Induction brazing and welding are different metal joining processes that have different advantages and disadvantages. Some of the key differences are:

  • In brazing, only the filler metal is melted, while welding melts both base and filler materials.
  • Brazing requires less heat than welding and does not affect the base metals’ structure or properties. Welding requires more heat and can cause distortion, stress, or metallurgical changes in the base metals.
  • Brazing uses capillary action to distribute the filler metal into the joint, while welding uses pressure or gravity to fill the joint.
  • Brazing can join dissimilar metals and metals with different melting points, while welding is more limited by the compatibility and weldability of the base metals.
  • Brazing is suitable for mass production and complex designs, while welding is better for parts that require durability and strength.

  Depending on your application and requirements, you may choose induction brazing or welding for copper. Induction brazing for copper has some benefits such as faster heating cycles, energy efficiency, precise heat control, and strong joints. However, induction brazing for copper may also have some challenges such as joint design, filler metal selection, flux application, and joint cleaning.

  • Brazing copper heat exchanger tubes in refrigeration units and custom trucks
  • Brazing flat copper wire and squirrel cage rotors used in motor and transformer manufacturing
  • Brazing bus bars
  • Brazing brass screw fittings in a diverse range of piping systems
  • Brazing carbide pins used in road construction
  • Brazing copper and brass assemblies for aerospace applications
  • Brazing aluminum assemblies
  • Brazing stainless steel tubes and fittings

  Induction brazing of copper assemblies offers some benefits such as:

  • Faster heating cycles and more consistent results
  • Energy efficiency and environmental friendliness
  • Precise heat control and selective heating
  • Strong and durable joints

How to choose an induction brazing machine for copper?

  You need to consider several factors, such as:

  • The size and shape of the copper parts you want to braze
  • The type and amount of filler metal you need to use
  • The production volume and speed you require
  • The level of automation and flexibility you prefer to

  Depending on your needs, you can choose from different types of induction brazing machines, such as:

  • General-purpose induction brazing machines that can handle a variety of parts and materials with adjustable power and frequency settings
  • Hand-held induction brazing machines can be used for tight spaces or large assemblies where it is more convenient to bring the coil to the part rather than the part to the coil
  • Mobile and automated induction brazing machines can be integrated with robotic arms or cobots for in-place brazing or high-volume production. A DSP digital control system with a coaxial transformer that can be used for supporting industrial robots, automation equipment, or a manual hand-held heating coil.

  You can consult our engineers online for free to help you find the best induction brazing machine for your copper parts.

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