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Study on the influence of the forming velocity in micro impact extrusion with modular dies

 
: Schubert, Andreas; Jahn, Stephan; Müller, Benedikt; Hackert-Oschätzchen, Matthias

Spaan, H. (Ed.) ; European Society for Precision Engineering and Nanotechnology -EUSPEN-:
11th International Conference of the European Society for Precision Engineering and Nanotechnology 2011. Proceedings. Vol.1 : May 23rd - 26th 2011, Como, Italy
Bedford: Euspen, 2011
ISBN: 978-0-9553082-9-1
pp.20-24
European Society for Precision Engineering and Nanotechnology (EUSPEN International Conference) <11, 2011, Como>
European Society for Precision Engineering and Nanotechnology (EUSPEN Annual Genereal Meeting) <13, 2011, Como>
European Society for Precision Engineering and Nanotechnology (EUSPEN International Meeting) <11, 2011, Como>
English
Conference Paper
Fraunhofer IWU ()
forming velocities; micro impact extrusion; micro forming

Abstract
In this paper the influence of different forming velocities (stamp velocities) on the micro impact extrusion is investigated. The research is done on precision micro cavities which were formed into aluminium sheet material using micro impact extrusion. The dependency of the stamp velocity is characterized using geometric parameters, metallographic analysis, and surface roughness.
It was found that the grade of influence of forming velocity on characteristic parameters of the formed micro geometry depends on the sheet material thickness. For low thickness no influence was found, but for large thickness the velocity influences the achieved forming result.

: http://publica.fraunhofer.de/documents/N-195444.html