Spot welding of different metals-aluminium and its alloys, Mechanical Engineering

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Spot welding of different metals-Aluminium and its alloys

High currents and shorter welding times are necessary for these materials. Special cleaning of the surface is warranted in order to remove the oxide film if high quality welds are required. The material is first decreased with trichloroethylene. Pickled by dipping in a suitable etching solution, washed and dried. Here, the upper limit is 6 mm thickness plate.


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