Graß, M.Jüngst, J.Böhm, S.2025-09-212025-09-212025-08-26http://hdl.handle.net/2003/4391610.17877/DE290R-25684Well-performing electrical conductors and contacting processes are crucial for a variety of industries and applications, including flat conductors such as busbars. The challenge is to manufacture relevant systems with excellent properties in a cost-efficient and ecological way. From a materials science perspective, one approach could be the utilization of aluminum in electrical systems. This is because aluminum is a better conductor than copper with regard to its weight. However, the exclusive use of aluminum is limited by the constraints of electrical systems that require the partial use of copper. This can be due to space limitations or connections to the power electronics, which are predominantly copper components. Hybrid systems consisting of aluminum, copper and dissimilar joints between both materials have been identified as a viable solution. However, the fabrication of these joints is challenging for conventional fusion welding processes due to chemical and thermophysical incompatibilities. Magnetic Pulse Welding (MPW) is a solid-state welding process which, due to its characteristic low energy input, allows a resource efficient fabrication of dissimilar joints. However, the limitations of MPW and their expandability, its potential for future applications, and the interactions of the process parameters with observed joint properties have not been sufficiently researched. Consequently, this study addresses MPW in the field of joining flat conductors by investigating the correlations between process parameters and mechanical, microstructural, and electrical joint properties. Furthermore, an inert gas supply during joining is investigated in order to determine the potential for improvement of the weldability and the resulting joint properties.enMagnetic Pulse WeldingElectrical Joint Characterizationlocal Inert Gas ApplicationDissimilar Materials620670ConferencePaperElektromagnetisches PulsschweißenWerkstoffInertgasAluminiumKupferVerbindungstechnik