Induction brazing is a process that uses an electromagnetic field to heat up the metal parts and filler material to be joined. It is a fast, precise, and energy-efficient method that can be used for brazing aluminum manifold tubes. Induction brazing aluminum can offer benefits such as meeting tight production tolerances, increasing production rates, reducing defect rates, and maintaining the metallurgical characteristics of the metals. You can watch a video of induction brazing aluminum manifold tubes here.
Why braze aluminum manifold tubes with induction heating?
One reason to braze aluminum manifold tubes with induction heating is to achieve a precise and consistent quality braze every time. Induction heating can also reduce the risk of overheating and melting the edges of the part, which can happen with other brazing methods due to the low melting temperature of aluminum. Induction heating can also increase the production rate, reduce the energy cost and improve the safety of the brazing process.
How to do aluminum manifold brazing with induction heating?
According to, induction brazing aluminum is a process that uses an electromagnetic field to heat up and join aluminum parts with a filler metal. It has some advantages over torch and furnace brazing, such as removing the need for a skilled operator, reducing energy costs, decreasing the equipment footprint, and improving the quality of the parts.
Some steps to perform induction brazing aluminum are:
- Prepare the aluminum parts by cleaning them and applying flux to prevent oxidation.
- Insert the filler metal between the parts to be joined. The filler metal should have a lower melting point than the aluminum parts.
- Place the parts in or near an induction coil that generates an electromagnetic field. The coil should be designed to match the shape and size of the parts.
- Apply power to the coil and heat the parts until the filler metal melts and flows into the joint. The heating time depends on the power, frequency, coil design, and part geometry.
- Remove the power and let the parts cool down. The joint should be strong and uniform after cooling.
What are some applications of induction brazing aluminum?
Induction brazing aluminum has some applications across various industries, such as:
- Aerospace: for jet engines, turbine blades, and satellites.
- Appliances: such as refrigerators, ice machines, and air conditioning units.
- Automobile: for joining small auto parts and making heat exchangers.
- Construction: for making aluminum structures and frames.
- Electrical: for fuses, motors, and packaging.
- HVAC: for making evaporator cores, manifolds, and valves.
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