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2005
Presentation
Titel
Joining by forming - state of the art and new developments
Titel Supplements
Presentation held at the DFG-Summerschool. Schwerpunktprogramm 1168 "Erweiterung der Einsatzgrenzen von Magnesiumlegierungen". 25./26.10.2005, Hamburg
Abstract
The object of this presentation are the technologies in the field of joining by forming. The principles of standard technologies and the need for new developments are explained. The possibilitiy of reducing the setting force in spot-joining operations by modifying the kinematics of the punch is described. This reduction of the setting force is not only an advantage because of the possible weight reduction of the joining equipment but also because it allows the integration of spot-joining by forming operations into hydroforming processes at comparable low fluid-pressure. Furthermore new methods of spot-joining by forming shall be introduced, where contrary to standard technologies like clinching or self-pierce riveting the die has no cavity and therefore a high concentricity tolerance between punch and die is obtained.