| 摘要 |
<p>The self-punching rivet has a rivet head outer face (12) and rivet shank outer face (14) connected by a conical or slightly curved chamfer (18,18') below the head and a radius R4 below the head which merges tangentially both into the chamfer and also into the shank outer face. The shank outer face and shank inner face (16) are connected at the rivet foot end via a radially outer first radius R1 and a radially inner second radius R2, wherein the common tangent Tan includes an angle alpha with a radial plane of the rivet. An independent claim is included for a die for the producing of a self-punching riveted connection, wherein the diameter and depth of the die cavity is defined by a mathematical expression.</p> |
