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Entwicklung einer technologischen Verfahrensvariante zum Widerstandsbuckelschweißen von Bauteilen aus nichtrostendem Stahl

: Puschmann, M.

Chemnitz, 2007, 79 S.
Chemnitz, TU, Dipl.-Arb., 2007
Fraunhofer IWU ()
Widerstandspreßschweißen; Widerstandsbuckelschweißen; einseitiges Widerstandsbuckelschweißen; nichtrostender Stahl; austenitischer Stahl; resistance welding; projection welding; stainless steel; indirect projection welding; austenitic steel

The aim of this work was the development of a process technology for the projection welding of stainless steel sheets, considering great demands on the surface of one side of the welded sheets.
In order to minimize the surcface damage, a modified variant of the indirect projection welding was used. The influence of different projections forms, underlayer materials, welding machines and process parameters on the surface damage and the mechanical strength were investigated. A good surface quality with an acceptable shear strenght could be achieved with a low projection height and a special projection shape. Short welding times and high welding currents should be used in order to minimize heat loss and to reach best heat concentration within the welding spot.