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Combining Aspects of Additive Manufacture and Filament Winding

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Combining Aspects of Additive Manufacture and Filament Winding to Produce Composites with Novel Fiber Reinforcement Patterns

 

Incorporation of continuous fiber reinforcement into 3D printed components has been of great interest and recent developments have led to limited commercial success only allowing relatively simple fiber paths and moderate fiber volume fractions.  The current work involves the development of a mechanical system that combines concepts of additive manufacturing with fiber placement via filament winding to enable unique, high-quality continuous fiber reinforcement patterns to be produced.  Non-angle of repose paths, without relying on the tack needed by conventional filament winding, are demonstrated utilizing commingled E-glass and polypropylene.  As a preliminary path and quality analysis experiment, the current work details a hoop wind transitioning to a longitudinal wind while relying only on the discrete solidification of the thermoplastic matrix.  Mandrel surface temperature, extruder temperature, deposition rate, fiber tension, and deposition surface material are preliminary bounding parameters controlled in the preparation of these composite structures.  To further showcase the ability of this new system to place fiber in the direction of loads, a demonstration component with fiber reinforcement around a manufactured in hole is presented and discussed.

 

Authors: Kent M. Warlick and Donald W. Radford

 

Conference: CAMX 2016 – Anaheim

 

SKU/Code: TP16-0075

 

Pages: 14


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