Jüngst, J.Graß, M.Böhm, S.2025-09-162025-09-162025-08-26http://hdl.handle.net/2003/4392510.17877/DE290R-25693Due to the higher specific electrical conductivity (conductivity/weight) of aluminum compared to copper and the associated lightweight potential, the electrical industry is moving towards current-conducting components made of aluminum. However, the use of aluminum is associated with a necessity for hybrid aluminum-copper joints, due to space limitations as well as purchased components are often made of copper. Furthermore, it can be observed that numerous flat conductors, such as those used in DC and asynchronous motors, are only a few millimeters wide. Due to the rapidly growing market for electric vehicles, an increasing demand for aluminum-copper dissimilar joints with small dimensions is consequently to be expected. In contrast to conventional fusion welding processes, magnetic pulse welding (MPW) is suitable for joining aluminum-copper dissimilar joints, due to the minimization of brittle intermetallic phases. This is attributed to the low energy input, which is applied as the movement of mass to fabricate a material continuous joint. It is known that MPW reaches its process limits when the dimensions of the joining partners decreases due to the minimization of effective eddy currents. However, these limits are still insufficiently researched. Consequently, this investigation is intended to reveal the process limitations of MPW with regard to the joining partner dimensions. For this purpose, various geometries are evaluated with regard to their weldability and the resulting microstructural, mechanical and electrical properties.enmagnetic pulse weldingjoining partner dimensionaluminum-copper dissimilar joints620670ConferencePaperElektromagnetisches PulsschweißenAluminiumKupferSchweißnaht