Magnetic pulse welding: an efficient and environmentally friendly multi-material joining technique

Magnetic pulse welding, a high speed joining process using electromagnetic forces, because of clean and multi-material operation has a wide range of possibilities for further development and application. Unlike conventional joining processes, the weld interface does not melt keeping the material properties intact without generation of hazardous emissions in form of heat, fume, and spatters. This paper presents a comprehensive review that considers almost all the major aspects of the subject. The paper first gives a general understanding of the process starting from its origin to its modern day status and states the widespread industrial applicability of the process. A detailed discussion of the current state of art in magnetic pulse welding is then presented. The operating principle is then described along with detailed insight into the various mechanisms responsible for a sound welded joint. The parameters controlling the process along with their effect on the weld are discussed followed by the various advantages and limitations of the process. Future trends in joining using magnetic pulse welding based upon current research developments are finally highlighted.