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Chances and challenges in joining by forming with a flat counter tool

Möglichkeiten und Herausforderungen des Umformfügens mit flachem Gegenwerkzeug
: Neugebauer, Reimund; Dietrich, S.; Mauermann, R.


Geiger, M.:
Sheet metal 2005 : Proceedings of the 11th international conference held at the Friedrich-Alexander University Erlangen-Nuremberg, Germany, 05 - 08 April 2005 ; SheMet '05
Uetikon-Zürich: Trans Tech Publications, 2005 (Advanced materials research 6/8)
ISBN: 0-87849-972-5
International Conference Sheet Metal (SheMet) <11, 2005, Erlangen>
Conference Paper
Fraunhofer IWU ()
assembly; finite element method (FEM); joining by forming; clinching; dieless clinching; rivet clinching; dieless rivet clinching; flat counter tool; Magnesium; Aluminum; steel; hybrid joint; joining method; die; dieless; anvil; Clinchen; matrizenlos Clinchen; Nietclinchen; matrizenlos Nietclinchen; Fügen; Fügeverfahren; Aluminium; Magnesium; Stahl; Mischverbindung; Matrize; Amboss; matrizenlos; Finite Elemente Methode (FEM)

Two new joining methods for sheet metal parts, dieless clinching and dieless rivet-clinching are introduced in this paper. With these methods all formable materials can be joined. Contrary to conventional technology in joining by forming these new methods are working with a flat anvil as a counter tool nstead of a contoured die, which has a number of advantages. The process has become simpler, the process reliability is increased, misalignments of the joining ools don't effect the quality of the connection anymore and even new applications, such as the joining of materials with a limited malleability become possible. Examples of realized connections and FE-calculations of the joining processes are presented.