JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 26

MANUFACTURING joning process
Main features
- Production of closed truss structures
with filament ring winding
- High flexibility due to different winding patterns
- Load-optimized connection
- High productivity through automation
Fig. 2: Structure and principle of filament ring winding

Fig. 3: Different winding patterns

so that a form-fit is created by the windings in
addition to the pure material closure by the resin
(Figure 3).
Future investigations
ITo achieve a more comprehensive understanding of the process, it is necessary to analyse and
characterise influencing variables with regard to
the winding result more precisely. In particular,
the focus is on the influence of fibre friction with
respect to the possible winding patterns. Based
on this, these patterns can be mathematically
modelled using a parametric approach. The basis
for this is differential geometry, with the help of
which it is possible to geometrically describe
the surfaces of the profiles and to display the
course of the winding paths as a function of the
influencing parameters.
This exact model then helps to derive the
necessary movements for the winding process

and to create reproducible connections with
different input parameters. FEM simulation and
optimization of the joint connection will also
bring further potential for improvement in the
mechanical performance of the overall structure
in the future. All these investigations should form
the basis for the derivation of a holistic CAE
process chain for the ring winding process.
Conclusion
Compared to the established methods, the
ring winding process offers the possibility of
producing closed truss structures automatically
and under load. By eliminating hybridization,
a long-term and very stable connection with
optimum lightweight construction properties
can be created. The process is very independent
of the choice of materials and can be carried out
with any type of fibre rovings. Future developments in the field of process automation and
modelling will increase the reproducibility and
thus the cost-effectiveness of the connection,
which will further increase the attractiveness of
this resource-efficient process.
More information:
www.wbk.kit.edu
marius.dackweiler@kit.edu

Fig. 4: Explanation of joining partners

26

jec composites magazine / N°122 July 2018

References
[1] Ehrenstein, G.: Faserverbund-Kunststoffe
- Werkstoffe, Verarbeitung - Eigenschaften.
2. Edition, Carl Hanser Verlag, München,
2006
[2] Freiberger, S.; Böhner, J.; Ellert, F.:
Entwicklung eines konfektionierbaren
CFK-Fahrradrahmens. Light-weight design,
Jahrgang 2011, Issue 6, Verlag Vieweg+Teubner | Springer Fachmedien Wiesbaden
GmbH, Wiesbaden
[3] Siebert, M.; Häberle, J.; Schlimmer,
M.: Geklebte Rohrrahmenkonstruktionen
zum Einsatz in Leichtbaustrukturen wie
hochwertigen Rehabilitationsmitteln oder
Fahrrädern. Gemeinsame Forschung in
der Klebtechnik, 3. Kolloquium, DECHEMA,
Forschungsvereinigung Automobiltech,
Forschungsvereinigung des DVS, Studiengesellschaft Stahlanwendung, Düsseldorf,
18.-19. Feb, 2003
[4] Schädel, J.: Automatisiertes Fügen von
Tragprofilen mittels Faserwickeln. Dissertation, wbk Institut für Produktionstechnik,
Karlsruher Institut für Technologie, Volume
183, 2014
[5] Vorrichtung zum automatisierten
Verbinden zweier Bauteile, gewickelte
Knotenverbindung und Verfahren zum
Verbinden zweier Bauteile in einem
Fügebereich, Amtl. Aktenzeichen: 10 2012
109 222.2, Amtl. Anmeldetag: 28.9. 2012,
Deutsches Patent- und Markenamt
[6] Fleischer, J.; Schädel, J.: Joining automotive space frame structures by filament
winding. in: CIRP Journal of Manufacturing
Science and Technology, Issue 6, Verlag
Elsevier, München, S. 98-101, 2013
[7] Device for automated connection of two
components, a wound joint connection and
a method of connecting two components in
a joint region, The United States Patent and
Trademark Office, US 9630378 B2, Release
date: 25.4.2017


http://www.wbk.kit.edu

Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #122 - July 2018

Cover
Edito
Opinion: Bringing expertise on board
Contents
NEWS
In brief
Announcement at OC
Agenda
BUSINESS
Trends - Overview of the global carbon composites market Simulation
Market - Attractive growth opportunities for composites in the transportation market
MANUFACTURING
Fibre placement - Fibre placement on-line monitoring and solutions for quality optimisation
Fibre placement - Repurposing residual AFP tape for complex aerospace parts
Monitoring - Overcoming the complexities of RTM
Joining process - Filament winding for automated joining of lightweight profiles
Aerospace - Are thermoplastics essential to the future of composites in aeronautics?
Thermoplastic - Full out-of-autoclave thermoplastic welded airframe
Thermoplastic - Thermoplastic composites are vital to drive aerospace build rates
UAV - The Dash X unmanned aerial vehicle
Nano-satellite - Successful mission of TuPOD, a TubeSats deployer manufactured via additive manufacturing
Manufacturing - Orbital ATK and Lockheed Martin celebrate F-35 programme milestone
Light aviation - A “one shot” aircraft to revolutionize the light aviation sector
Research - An aeronautics and space-oriented research group
SOLUTIONS
Sustainability - Agricultural waste for thermal and acoustic insulation in construction
Recycling - Natural fibres and recycled rubber: new alternative solutions for composite panels
Artistic vases - Art FRP, an innovation based on the Japanese traditional sense of beauty
In the world
TECHNOLOGY
Nanotubes - Conductive glass fibre products using single-wall carbon nanotubes
Simulation - Optimizing the key manufacturing parameters of the AFP process
Index
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JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 68
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - Cover
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 2
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - Edito
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - Opinion: Bringing expertise on board
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 5
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - Contents
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 7
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - In brief
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 9
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - Announcement at OC
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 11
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 12
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - Agenda
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - Trends - Overview of the global carbon composites market Simulation
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 15
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - Market - Attractive growth opportunities for composites in the transportation market
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 17
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - Fibre placement - Fibre placement on-line monitoring and solutions for quality optimisation
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 19
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 20
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - Fibre placement - Repurposing residual AFP tape for complex aerospace parts
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 22
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - Monitoring - Overcoming the complexities of RTM
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 24
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - Joining process - Filament winding for automated joining of lightweight profiles
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 26
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - Thermoplastic - Full out-of-autoclave thermoplastic welded airframe
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 28
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 29
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - Thermoplastic - Thermoplastic composites are vital to drive aerospace build rates
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 31
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - UAV - The Dash X unmanned aerial vehicle
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 33
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - Nano-satellite - Successful mission of TuPOD, a TubeSats deployer manufactured via additive manufacturing
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 35
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 36
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 37
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - Manufacturing - Orbital ATK and Lockheed Martin celebrate F-35 programme milestone
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - Light aviation - A “one shot” aircraft to revolutionize the light aviation sector
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 40
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - Research - An aeronautics and space-oriented research group
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 42
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 43
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 44
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 45
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 46
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 47
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - Sustainability - Agricultural waste for thermal and acoustic insulation in construction
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 49
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 50
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 51
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 52
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - Recycling - Natural fibres and recycled rubber: new alternative solutions for composite panels
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 54
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 55
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - Artistic vases - Art FRP, an innovation based on the Japanese traditional sense of beauty
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 57
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 58
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - In the world
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - Nanotubes - Conductive glass fibre products using single-wall carbon nanotubes
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 61
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 62
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - Simulation - Optimizing the key manufacturing parameters of the AFP process
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 64
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 65
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - Advertisers
JEC COMPOSITES MAGAZINE - Issue #122 - July 2018 - 67
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