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Proceedings Paper

Integrated piezoelectric actuators in deep drawing tools
Author(s): R. Neugebauer; P. Mainda; W.-G. Drossel; M. Kerschner; K. Wolf
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Paper 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.

Paper Details

Date Published: 28 April 2011
PDF: 7 pages
Proc. SPIE 7979, Industrial and Commercial Applications of Smart Structures Technologies 2011, 79790F (28 April 2011); doi: 10.1117/12.879888
Show Author Affiliations
R. Neugebauer, Fraunhofer Institute for Machine Tools and Forming Technology (Germany)
P. Mainda, Fraunhofer Institute for Machine Tools and Forming Technology (Germany)
W.-G. Drossel, Fraunhofer Institute for Machine Tools and Forming Technology (Germany)
M. Kerschner, Volkswagen AG (Germany)
K. Wolf, Fraunhofer Institute for Machine Tools and Forming Technology (Germany)


Published in SPIE Proceedings Vol. 7979:
Industrial and Commercial Applications of Smart Structures Technologies 2011
Kevin M. Farinholt; Steve F. Griffin, Editor(s)

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