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@PHDTHESIS{Janssen:794951,
author = {Janssen, Henning},
othercontributors = {Brecher, Christian and Fleischer, Jürgen},
title = {{A}dditive {P}rozesskette zur {H}erstellung von
thermoplastischen {F}aserverbundbauteilen-{H}ybridbauteilen;
1. {A}uflage},
volume = {14/2020},
school = {RWTH Aachen University},
type = {Dissertation},
address = {Aachen},
publisher = {Apprimus},
reportid = {RWTH-2020-07988},
isbn = {978-3-86359-870-9},
series = {Ergebnisse aus der Produktionstechnik},
pages = {1 Online-Ressource (VIII, 164 Seiten) : Illustrationen,
Diagramme},
year = {2020},
note = {Auch veröffentlicht auf dem Publikationsserver der RWTH
Aachen University; Dissertation, RWTH Aachen University,
2020},
abstract = {According to the current state of art, a strong demand
exists for an economic and flexible production of
tailor-made fibre composite components based on
unidirectional thermoplastic semi-finished products. This
thesis contributes to this topic with the research and
development of an additive process chain for the production
of thermoplastic fiber composite hybrid components. The main
challenge in the production of FRP components is the
processing of two different material phases. This yields to
a strong influence of the single process steps on each
other. In terms of value chain management, thermoplastic
tapes offer a special opportunity to decouple the production
of semi-finished products and materials from discrete
component production and still have a sufficiently high
degree of flexibility. Based on the physical models of the
individual process steps impregnation, draping and heating,
the process chain is optimized. This also includes a
consideration of the process robustness, which is evaluated
with a statistical model of the in-situ consolidation
process, as well as the investigation of various
possibilities for upscaling of the productivity and their
effects on the overall equipment effectiveness. The gained
knowledge leads to the development of a system technology
for the production of load- and waste-optimized laminates.
The resulting, highly integrated machine concept consists of
an IR-based deposit system, which is optimized for the
production of flat laminates by in-situ consolidation. It
can be reproduced cost-effectively. This prototype machine
system is used for process development and laminate
production. On tape level it can be proven that the
IR-assisted tape laying enables a robust consolidation
process as well as a cut-minimized processing of
unidirectional tapes. A detailed characterization of the
laminates shows that the mechanical properties are
comparable with laminates from conventional processes. A
novel process combination is investigated for the processing
of the manufactured laminates into thermoplastic hybrid
components. This consists of a thermoforming process in
which the laminate is joined with a thermoplastic functional
structure in parallel to the main processing time. The
additive rib structure also has the function of the forming
stamp, so that only a single-sided, cost-effective metal die
is required. By using a multi material reinforced composite
structure, it is shown that a fusion-based connection of
both joining partners can be achieved. A final evaluation of
the hybrid components and the researched process chain
answers the research question whether it is possible to
manufacture load- and waste-optimized laminates from
unidirectional tapes economically using in-situ
consolidation. Furthermore, their processing into hybrid
components is validated.},
cin = {417200 / 417310},
ddc = {620},
cid = {$I:(DE-82)417200_20140620$ / $I:(DE-82)417310_20140620$},
typ = {PUB:(DE-HGF)11 / PUB:(DE-HGF)3},
doi = {10.18154/RWTH-2020-07988},
url = {https://publications.rwth-aachen.de/record/794951},
}
Gast ::