Lightweight structures additively manufactured by processing fiber-reinforced material

Description

Improvement of properties by fiber reinforcement

Contact

Fraunhofer IWU

Prof. Sebastian Scholz

The high-speed 3D printing process SEAM (Screw Extrusion Additive Manufacturing)developed at Fraunhofer IWU is characterized by an extremely increased process speed when processing inexpensive standard plastic granules.

For the additive manufacturing of load-path-adapted highly resilient structural components, the expansion of the process-to-process long fiber reinforced granules (LFT) as well as the printing of inserted continuous fiber semi-finished products to form a sandwich composite or local reinforcement is planned. In this case, the technology is to be adapted regarding the processing of LFT granules. For printing of inserted semi-finished products, the process sequence of insertion, curving, fixing and preheating of the prefabricated fiber semi-finished products as well as the 3D printing of grid-like structures, which is also possible in the 5-axis, are to be developed. A high adhesion of the joint partners for the maximum utilization of the material properties is to be optimized and transferred to concrete applications from medical technology.