Description of the product
The product of the Refco case study is part of a refrigeration circuit of a compressed air-dryer. Compressed air dryers are devices for removing water vapour from compressed air and are used in a wide range of industrial products. The actual part is a Cu-tube brazed into a Ni-plated carbon-steel sleeve. This sleeve is fixed with a nut onto the refrigerant compressor or other components.
Current joining technology
Currently, manual brazing with an acetylene torch is used to join the two components.
Advantages of Joining through EMW
Electromagnetic pulse welding offers an alternative to brazing, as it is expected that it leads to a cost reduction due to the elimination of brazing filler materials and shortening of the production cycle. Moreover, improved joining quality due to increased automation and improved worker safety by eliminating hazardous substances, such as flame gas and brazing alloys, is expected.
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