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New processing technology for production of multilayered products in the industrial field

Exploitable results

The fully automated production of multilayer products has been attained and demonstrated on a pressure vessel serving as an example of a component. The three-dimensional reinforcing fabrics developed for the purpose of the project not only have proved themselves on a pressure vessel serving as an example of a component, but also open up perspectives for the optimization of the product. Tests verify that the resulting elongation of the thermoplastic component under permanent load could be reduced by 50%. It can be safely assumed that the continued development of this technology can serve to reduce this creep even further. The technology developed for the production of reinforcing fabrics facilitates the production of the greatest variety of rotationally symmetrical forms. Owing to the possibility of aligning the fibres along the longitudinal axis of the rotationally symmetrical body and around the circumference, the fabric proves an excellent and economical addition or (depending on the product) also an alternative to the braiding technology most used at present. A further technology was developed for the automated handling of the reinforcing textile fabric. For the rotationally symmetrical reinforcing textile required in the project, a handling solution involving self-adhesive retaining elements was preferred to a solution involving mechanical grippers. Developed in the project for the handling of freeform fabrics and their positioning for further processing was a solution involving mechanical grippers. This solution primarily distinguishes itself through its minimal penetration of the textile fabric by the grip elements and through a uniform application of the retention force to the textile fabric.

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