Braze

Brazing

Brazing is a metal-joining process in which two or more metal items are joined by melting a filler metal which flows into the joint, with the filler metal having a lower melting point than the adjoining metal. During the brazing process, the filler metal flows into the gap between close-fitting parts by capillary action. The filler metal is brought slightly above its melting temperature while protected by a suitable atmosphere, usually a flux. It then flows over the base metal and is then cooled to join the work pieces together. Brazing differs from welding in that it does not involve melting the work pieces. In welding, the original metal pieces can be fused together without additional filler metal. Brazing differs from soldering through the use of a higher temperature. The principle of joining with filler metal is the same, but solder has a specific composition and lower melting point allowing work on delicate components such as electronics with minimal metallurgic reaction.

Data Source : Wikipedia

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