ABSTRACTS, cont.

Abstracts, cont.
Innovative hybrid process in metal forming
NAMRC41-1550
Andreas Jäger, Institute of Forming Technology and Lightweight Construction, Dortmund, Germany, Alessandro
Selvaggio, Stephan Hänisch, Matthias Haase, Christoph Becker, Jörg Kolbe, Noomane Ben Khalifa, A. Erman Tekkaya,
Institute of Forming Technology and Lightweight Construction, TU Dortmund University, Dortmund, Germany
Various hybrid metal forming processes are presented, based on the simultaneous and controlled interaction
of process mechanisms, energy sources or tools that have a significant effect on the process performance and
result. For the production of composite metal structures made of a sheet metal and a bulk metal component a
new process combination of deep drawing and cold forging was developed and tested. Curved profile extrusion
and twisted profile extrusion are used to produce curved or twisted profiles by deflecting the extrudate at the
press using a guiding tool. By applying electromagnetic compression subsequent to hot extrusion, profiles with
locally adapted cross section geometries can be manufactured. Hot extrusion and integrated equal channel
angular pressing are used to improve the mechanical properties of aluminum profiles. Simultaneous application
of injection molding and sheet metal forming process was used to produce lightweight, functional metal-plastic
hybrids. By incremental tube forming, as a combination of a tube spinning and a tube bending process, bent
structures with variable tube diameters can be produced.
159 MSEC 2013 NAMRC 41