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Magnetic pulse welding of dissimilar material sheet metal joints

Presentation held at 2nd Sino-German Workshop "Challenges in Processing and Modelling of Lightweight Metals", July 17th-21st, 2018, Dresden, Germany
: Psyk, Verena; Scheffler, Christian; Linnemann, Maik; Landgrebe, Dirk

presentation urn:nbn:de:0011-n-5066185 (3.7 MByte PDF)
MD5 Fingerprint: 1ce53207462d1337c1cfba08a5f9ab57
Created on: 17.8.2018

2018, 21 Folien
Sino-German Workshop "Challenges in Processing and Modelling of Lightweight Metals" <2, 2018, Dresden>
Presentation, Electronic Publication
Fraunhofer IWU ()
magnetic pulse welding; joining; aluminium; copper; process analysis

Environmental protection and saving of energy and resources increasingly influences industrial manufacturing. Thus an increasing demand for lightweight construction approaches can be observed. Multi-material design is a well-known strategy allowing weight savings, higher product performance and cost reduction at the same time, but the realization of optimized multi-material products is frequently limited by the joining technology. Magnetic pulse welding is a promising innovative approach for joining material combinations conventionally considered as non-weldable. Collision parameter based welding windows, which are well known from explosive welding, can be a powerful tool in the design of MPW processes, too, because they are independent from all parameters specific for the individual equipment or setup. However, using these welding windows in practice is complicated, because collision parameters cannot be directly adjusted and informative value regarding resulting weld quality is limited. Therefore, a process analysis of magnetic pulse welding of sheet metal lap joints was performed studying the correlations between the most important adjustable process parameters, the collision parameters and important weld quality characterizing parameters for different material combinations and flyer thicknesses.