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Integrated piezoelectric actuators in deep drawing tools

Integration piezoelektrischer Aktoren in Blechumformwerkzeugen
 
: Neugebauer, Reimund; Mainda, P.; Drossel, W.-G.; Kerschner, M.; Wolf, K.

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Postprint urn:nbn:de:0011-n-1645470 (583 KByte PDF)
MD5 Fingerprint: 30566dcc3a3bba2293ebb2d8bd677f81
Copyright 2011 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Created on: 9.6.2011


Farinholt, K.M. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Industrial and Commercial Applications of Smart Structures Technologies 2011 : 6.-10. März 2011, San Diego
Bellingham, WA: SPIE, 2011 (Proceedings of SPIE 7979)
ISBN: 978-0-8194-8541-0
Paper 79790F
Conference "Industrial and Commercial Applications of Smart Structures Technologies" <2011, San Diego/Calif.>
English
Conference Paper, Electronic Publication
Fraunhofer IWU ()
deep drawing tools; try-out; sheet metal forming; piezoelectric actuator

Abstract
The production of car body panels are defective in succession of process fluctuations. Thus the produced car body panel can be precise or damaged. To reduce the error rate, an intelligent deep drawing tool was developed at the Fraunhofer Institute for Machine Tools and Forming Technology IWU in cooperation with Audi and Volkswagen. Mechatronic components in a closed-loop control is the main differentiating factor between an intelligent and a conventional deep drawing tool. In correlation with sensors for process monitoring, the intelligent tool consists of piezoelectric actuators to actuate the deep drawing process. By enabling the usage of sensors and actuators at the die, the forming tool transform to a smart structure. The interface between sensors and actuators will be realized with a closed-loop control. The content of this research will present the experimental results with the piezoelectric actuator. For the analysis a production-oriented forming tool with all automotive requirements were used. The disposed actuators are monolithic multilayer actuators of the piezo injector system. In order to achieve required force, the actuators are combined in a cluster. The cluster is redundant and economical. In addition to the detailed assembly structures, this research will highlight intensive analysis with the intelligent deep drawing tool.

: http://publica.fraunhofer.de/documents/N-164547.html