Fused Deposition Modelling (FDM) is one of the leading technologies in the Additive Manufacturing (AM) market. In particular, the production of visual objects, prototypes and low volume products made of thermoplastics characterize this simple and cost-effective technology. In order to shorten development cycles and reduce production costs simultaneously, this technology has been established as an integral part of product development processes in recent years. Unfortunately, the scope of application for industrially usable functional components for this technology is not yet given. Hardly any standard industrial plastics can be processed, let alone plastics with a fibre content that create a significant improvement in the material properties. Furthermore, the use of plastic filaments as raw material limits the maximum build-up rate, the flow rate and the material selection
In order to overcome the process-related restrictions and to increase the efficiency of the process at the same time, the way in which the raw material is provided must be combined with a redesign of the extrusion unit.