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Joining by forming - state of the art and new developments

Presentation held at the DFG-Summerschool. Schwerpunktprogramm 1168 "Erweiterung der Einsatzgrenzen von Magnesiumlegierungen". 25./26.10.2005, Hamburg
 
: Neugebauer, Reimund; Kraus, C.; Dietrich, S.

:
Volltext urn:nbn:de:0011-n-391686 (5.6 MByte PDF)
MD5 Fingerprint: d05ed1831b3c31aabdbbbc50eea41411
Erstellt am: 18.08.2006


2005, 31 Folien
Summer School "Erweiterung der Einsatzgrenzen von Magnesiumlegierungen" <2005, Hamburg>
Englisch
Vortrag, Elektronische Publikation
Fraunhofer IWU ()
assembly; finite element method (FEM); joining by forming; selfpierce-riveting; clinching; rivet clinching; dieless rivet clinching; flat counter tool; hydroforming; aluminum; joining method; dieless; anvil; joining force reduction

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.

: http://publica.fraunhofer.de/dokumente/N-39168.html