Composite Technology Center GmbH

Stade, Germany

Composite Technology Center GmbH

Stade, Germany
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Staab F.,University of Kaiserslautern | Balle F.,University of Kaiserslautern | Born J.,Composite Technology Center GmbH
Key Engineering Materials | Year: 2017

Multi-material-design offers high potential for weight saving and optimization of engineering structures but inherits challenges as well, especially robust joining methods and longterm properties of hybrid structures. The application of joining techniques like ultrasonic welding allows a very efficient design of multi-material-components to enable further use of material specific advantages and are superior concerning mechanical properties. The Institute of Materials Science and Engineering of the University of Kaiserslautern (WKK) has a long-time experience on ultrasonic welding of dissimilar materials, for example different kinds of CFRP, light metals, steels or even glasses and ceramics. The mechanical properties are mostly optimized by using ideal process parameters, determined through statistical test planning methods. This gained knowledge is now to be transferred to application in aviation industry in cooperation with CTC GmbH and Airbus Operations GmbH. Therefore aircraft-related materials are joined by ultrasonic welding. The applied process parameters are recorded and analyzed in detail to be interlinked with the resulting mechanical properties of the hybrid joints. Aircraft derived multimaterial demonstrators will be designed, manufactured and characterized with respect to their monotonic and fatigue properties as well as their resistance to aging. © 2017 Trans Tech Publications, Switzerland.


Balle F.,University of Kaiserslautern | Staab F.,University of Kaiserslautern | Born J.,Composite Technology Center GmbH
ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials | Year: 2016

The application of joining techniques like ultrasonic welding allows a very efficient design of multi-material-components to enable a saturation of material-specific advantages and mechanical properties. Multi-material concepts offer highest potentials for weight saving and optimization of lightweight structures but inherit challenges as well. The Institute of Materials Science and Engineering of the University of Kaiserslautern (WKK) has a long-time experience on ultrasonic welding of dissimilar materials, for example different kinds of CFRP, light metals or steels. The process parameters are optimized by statistical test planning methods and the validation via related mechanical properties. This gained knowledge is now to be transferred to applications in aviation industry in cooperation with CTC GmbH (Stade) and Airbus Group (Bremen, Hamburg). Therefore aircraft-related materials are joined by ultrasonic welding. The applied process parameters are recorded and analyzed in detail to be interlinked with the resulting mechanical properties of the hybrid joints. Aircraft derived multi-material demonstrators will be designed, manufactured and tested with respect to its monotonic and fatigue properties as well as its resistance to aging. © 2016, European Conference on Composite Materials, ECCM. All rights reserved.

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