2 Semi-hollow punch rivet a punch rivet joint of at least two components by means of a semi-hollow punch rivet as well as a method for connecting the components with the semi-hollow punch rivet

摘要

Disclosed is a semi-hollow punch rivet (1) capable of establishing a joint between at least two components arranged in a pile on top of each other, the semi-hollow punch rivet comprising a cylindrical side surface (32). A rivet head (10) from which a rivet shaft (30) extends. a blunt rivet foot provided at the end of the rivet shaft 30 facing away from the rivet head 10 and having a rivet foot front surface 42 disposed perpendicular to the longitudinal axis L A of the rivet shaft 30; and a shaft cavity (50) that is bell-shaped in the axial cross section of the rivet shaft (30) and extends into the rivet shaft (30) starting at an end facing away from the head (50), wherein the shaft cavity (50) is bell-shaped is a convex inlet portion 52 that starts radially inside the rivet foot front surface 42 and extends in the direction of the rivet head 10 in an arc shape having an inlet radius R s , the inlet portion 52 being tangent to It is formed by a linearly extending continuous portion 54 , which transitions in the direction and disposed at an acute angle α with respect to the cylindrical side surface 32 , and a final dome portion 56 .