Aviation Week & Space Technology - 3 November 2014

Heat Treat Knowledge

For more information about these processes, visit

http://www.IpsenUSA.com/Brazing to view the full technical papers.

Choose the best in brazing

Fundamentals of Aluminum Brazing

Vacuum aluminum brazing is not only efficient, cost-effective

and environmentally friendly, but also a careful balance of

time, temperature and vacuum level. To ensure brazing

success, these parameters must be controlled in a work

environment utilizing sophisticated controls to ensure fast

pumping, low parts per million of oxygen and exceptional

temperature uniformity. For fully successful part brazing,

following a routine maintenance program and adhering to

proper joint design are also essential.

Aerospace Aluminum Brazing and Compliance

Aerospace aluminum brazing has been around for decades,

continuously evolving and fractionating into different

Aerospace niches. At the same time, as the continual

demand for lower brazing costs, system throughput

enhancements and furnace capabilities to process

complicated part geometries increases, so does the need for

stricter guidelines and procedure adherence. While AMS

2750E and Nadcap certification normally form a synergistic

bond, they must first be separated in order to understand

the differences between the two. This understanding will

help simply certification.

Brazing has many advantages when

compared to other metal-joining

processes. Ideal situations for

brazing include:

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cross-sections that need to be

joined

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and stainless steel, that need to

be joined

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containing many junctions to be

sealed (e.g. heat exchangers) or

deep joints with restricted access

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of joints

Ipsen experts explore aluminum

brazing and compliance standards in

technical guides.

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