A notable trend in HVAC and refrigeration is that contractors are increasingly repairing faulty aluminum coils and return bends rather than ordering new parts. Two factors are driving this change: ...
Where do you stand on one of the eternal questions of metalwork: brazing, or welding? As your Hackaday writer, and the daughter of a blacksmith, it’s very much on the welding side here. Brazed joints ...
Brazing joins parts by heating them to more than 840°F and applying a filler metal that has a melting temperature below that of the base metal. Filler metal flows into the joint by capillary ...
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