Joining of Cold-Reduced Carbon Steel Sheet and Aluminum Sheet by Impulsive Riveting Method and Punch Riveting Method

The impulsive riveting method is described as the punching and joining of sheet metal carried out using the impulsive energy of a weight accelerated by an air compressor. Parts are held together between the rivet and rivet-holder. A hole is made in the sheets by the high speed collision of rivet and a weight (approximately 100 m/s or more). Another method, punch riveting, joins the sheets by pressing the rivet through with a press machine. The rivet and rivetholder are also used in this method. The deformation and strength of joined sheets were compared for each method, as influenced by the speed of the rivet. In this study, impulsive riveting and punch riveting were applied to the joining of cold-reduced carbon steel sheet and aluminum sheet, and their effects on the deformation and strength of joints was examined. The results clarify the characteristics of each riveting method for joining dissimilar sheet metals..