a. General. (1) Oxides of all ordinary commercial metals have higher melting points than the metals and alloys (except steel) have themselves. They are usually pasty when the metal is quite fluid and at the proper welding temperature. An efficient flux will combine with oxides to form a fusible slag. The slag will have a melting point lower than the
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On April 30th, 2008 / Oxygen Fuel Gas Welding Procedures, Welding and Brazing Non-Ferrous Metals / Leave a comment
Aluminum Brazing a. Aluminum Brazing. Many aluminum alloys can be brazed. Aluminum brazing alloys are used to provide an all-aluminum structure with excellent corrosion resistance and good strength and appearance. The melting point of the brazing filler metal is relatively close to that of the material being joined. However, the base metal should not be melted; as a result, close
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