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Open AccessArticle

Development of Steps in an Automated Process Chain for Piezoceramic-Metal Compound Production

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Fraunhofer-Institut für Werkzeugmaschinen und Umformtechnik, Reichenhainer Straße 88, 09126 Chemnitz, Germany
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Professur für Adaptronik und Funktionsleichtbau, Technische Universität Chemnitz, Straße der Nationen 62, 09111 Chemnitz, Germany
*
Author to whom correspondence should be addressed.
J. Manuf. Mater. Process. 2019, 3(1), 3; https://doi.org/10.3390/jmmp3010003
Received: 10 December 2018 / Accepted: 25 December 2018 / Published: 7 January 2019
(This article belongs to the Special Issue Analysis and Modeling of Sheet Metal Forming Processes)
The potential of adaptronic applications has been proven in many conceptual studies. A broad use in high-efficiency branches is often hindered by the absence of an appropriate assembly method. Especially for piezoceramic foil transducers, the application on structural parts can be simplified using a semi-finished part that includes the transducer. The part is then shaped in a final forming operation. The purpose of the present study is the investigation of process limits in automated process chains for producing semi-finished parts. An adhesive is used in the process, which is only locally cured. This bi-conditioned state is achieved using cooling and heating elements. The process limits are mainly affected by the choice of temperature and curing time between adhesive application and forming operation. Several tests with a rotational rheometer were carried out to investigate the curing behavior. An appropriate process window was identified varying processing time and temperature. The results were then used to build a model of the curing behavior. A mathematical approach had to be used to find the best configuration because no sharp border exists between the two adhesive conditions of liquid and solid state. The process parameters were proven with runs inside and outside of the process limits. View Full-Text
Keywords: aluminum; piezoceramic; compound; sandwich; automation; failure; rotational rheometer aluminum; piezoceramic; compound; sandwich; automation; failure; rotational rheometer
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Drossel, W.-G.; Nestler, M.; Hensel, S. Development of Steps in an Automated Process Chain for Piezoceramic-Metal Compound Production. J. Manuf. Mater. Process. 2019, 3, 3.

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