SAMPE Journal - November/December 2021 - 26
FEATURE
Laser-Sintering Process
Additive Manufacturing of Continuous Fibre-Reinforced
Plastic Components by A Novel Laser-Sintering Process
Michael Baranowski, Sebastian Beichter, Marvin Griener, Sven Coutandin, Jürgen Fleischer
Karlsruhe Institute of Technology, Karlsruhe, Germany
E-Mail: michael.baranowski@kit.edu
ABSTRACT
T
oday among engineering materials, continuous fibre reinforced polymers (CFRP) show high stiffness and
strength to weight ratios. To rival the traditional manufacturing methods of CFRP, many investigations have
sought to combine the outstanding mechanical performances of these materials with the freedom in design
and the economic benefits of additive manufacturing (AM). This paper focuses on a novel laser-sintering
machine which enables the integration of continuous fibres into the laser-sintering process as well as the
identification of influencing parameters for this new process. Firstly, the principle of fibre roving integration
is presented. With the help of a heated nozzle, the already sintered layers are melted. A simultaneous motion
sequence between the nozzle and the fibre feed is used to insert the fibre into the molten material. Secondly,
machine- and process-related parameters are identified which have an influence on the fibre integration. By
using an influence analysis, the parameters will be investigated and parameter sets for a successful fibre
integration will be found. The identified parameters are to be used for future investigations. The results of this
paper show the potential of continuous fibre integration in the laser-sintering process based on measured
tensile properties.
26 | SAMPE JOURNAL | NOVEMBER/DECEMBER 2021
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SAMPE Journal - November/December 2021
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