ABSTRACT

The pressure applied in the process of cold welding causes directional deformation, with the help of which the surfaces are cleaned and results in the directionality of bonds, the convergence of atoms, as well as the increase of their energy levels to the state necessary for the appearance of metal bonds. The presence of melting zones can be one of the most essential mechanisms for the adhesion of materials during explosive welding. In addition to fragmentation and melting, the process controlling the formation of a welded joint is the formation of cusps on the interface. The recrystallization hypothesis is based on the assumption that the mechanism for combining contacting metals whose crystal lattice is distorted lies in the recrystallization process, which results in the formation of new crystals common to the metals being welded. The chapter also presents an overview of the key concepts discussed in this book.