In this paper, a new riveting method considering design for disassembly is attempted. The method can join the sheets by the high-speed blanking without drilling of the sheets as well as disjoin easily the jointed sheets. The joining is carried out by the following procedures: (1) A pair of a rivet with a rivet head and a rivet holder which has been already drilled in the center as the other rivet head is set on condition that their center axes may agree and two pieces of sheets are interposed between them. (2) The rivet axis set on the upper sheet is struck into sheets by the collision of the weight with high speed and the rivet axis penetrates the sheets. (3) The rivet axis which penetrated the sheets is inserted into the hole of the rivet holder and then the tip of the rivet axis which projects from the hole collides with a die. Then the axis and the rivet holder are joined because the plastic deformation of the axis generated by the collision fills up the hole of the rivet holder and the sheets are fastened tightly by both the rivet with the rivet head and the rivet holder. The experimental results showed that the joint strength by impact riveting was higher than that of caulking, and the deformation of sheets was small. In addition, the joined sheets could be disjoined easily.
