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Implementation of a fully automated filament extrusion system and investigation on process speed optimization

: Springer, Patrick; Mayer, Pablo; Reissig, Tobias; Echsel, Markus; Fischer, Jonas; Refle, Oliver; Frauenfelder, Martin; Stüdeli, Pius

Volltext urn:nbn:de:0011-n-4907983 (885 KByte PDF)
MD5 Fingerprint: c931a053c472d26b162dd5f4c482dff4
Erstellt am: 24.4.2018

Fraunhofer Additive Manufacturing Alliance, Dresden; Fraunhofer-Institut für Werkzeugmaschinen und Umformtechnik -IWU-, Chemnitz:
Fraunhofer Direct Digital Manufacturing Conference, DDMC 2018 : Berlin, March 14-15, 2018
Stuttgart: Fraunhofer Verlag, 2018
ISBN: 978-3-8396-1320-7
6 S.
Fraunhofer Direct Digital Manufacturing Conference (DDMC) <2018, Berlin>
Konferenzbeitrag, Elektronische Publikation
Fraunhofer IPA ()
Additive Manufacturing (AM); Rapid Prototyping; fused deposition modelling; Automatisierung; Prozessoptimierung

This paper introduces an approach of a fully automated FFF (Fused Filament Fabrication) printer, which can be easily integrated within production environments to manufacture complex polymeric parts autonomously, suitable for use as customized grippers, nests or handling jigs.
The overall printing process, which has been automated including pre- and post- processing steps is described. The process includes automated CAD data generation, loading of the printer, printing, cleaning and storing of printed parts. In addition to the mechanical setup, the industrial PLC based control software is introduced. The automated parts manufacturing process is described including a software tool developed for the generation of customized parts. Discussion of the implemented approach is concluded by a study on the effect of applying a closed-loop positioning control system to achieve higher printing accuracy and speed. Additionally, the dynamic behaviour of the extruder axis system has been investigated and corresponding results are presented.