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Manufacturing Industry

Ultrasonic soldering enables lower weight, smaller parts.(Welding/Joining)

Advanced Materials & Processes,  July, 2004  

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A technique in which steel and aluminum are joined by ultrasonic soldering has reportedly developed by Suzuki Motor Co., Japan. The technique enables parts to be made lighter and smaller, because the dissimilar metals can be applied where they perform best. In the process, a zinc-aluminum alloy (Zn-5Al) solder is inserted between the two metals, and ultrasonic waves are applied to the solder.

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This results in alternating waves of compression and tension (cavitation) in the solder as it is ultrasonically vibrated. The vibrations remove and destroy the oxide films from the metal ...

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