Shock welding - Process variants and measuring procedures for assessing the welding quality

摘要

The prerequisites necessary for joining using shock welding processes were investigated within the framework of a research project. Both explosive welding and magnetic pulse welding were considered. In this respect, the investigations encompassed process requirements as well as defined parameters. The shock-welded joints were classified on the basis of the evaluation of metallographic specimens using a light microscope and the technological limits of the process were described. The determination of the degree of hardness H, the welding zone length l_(sz) and the adhesive shear strength T_H served to establish the welding properties. The bonding zone of the welded joint was investigated with the EDX (energy-dispersive X ray spectroscopy) procedure using scanning electron microscopy (SEM).