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Brazing is a technique used to join metals together. The metal pieces are heated to around 1100F which is hot enough to melt and flow a filler material between them. This is much less heat than is used in welding where the metal pieces are melted and fused together.
The filler material used is an alloy usually made of copper, silver and zinc. It produces a very strong bond with tensile strengths ranging from 60,000 to over 100,000 psi. The actual strength depends on a number of factors including the spacing between the metal pieces when the filler is flowed in.
Brazing can be used to join similar or dissimilar metals and uses lower heat than welding. The lower heat used is less likely to buckle or warp thin metal pieces.
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