JEC COMPOSITES MAGAZINE - Issue #135 - July/August 2020 - 45

"Don't miss the shift to Green and the chance to make a positive impact on the environment!"

row (thermoplastic ribs), Trampoline
(welded torsion box, see above), and
the CORAC wing (where the wing spar
is in thermoset resin, the first created by
Daher). The acquisition of KVE is also
consistent with the goal to consolidate
our leading position.

CORAC front wing spar in
thermoset resin

States and in Europe. Daher, as a major player in thermoplastics, sought to
position itself in this type of assembly,
which takes advantage of the fact that
these resins melt and therefore can be
welded. Once again, the objective here
is to replace drilling and installation of
fasteners, which are costly operations.
It facilitates distribution of stress in a
more "native composites" way, by virtue of the continuity of the fibres.
What specific projects do you have
in this area? Do you think that this
technology will make it possible for
more composites to be integrated into
airplanes and aerostructures?

You've also mastered additive manufacturing, using fibre placement technologies like the ones from Coriolis. Do you
plan on investing in 3D printing next?

D.B.: Today, Daher has mastered fibre

placement with thermoset resins and is
working on the R&D for thermoplastic
resins.
We're also looking into 3D printing with
either metallic powders or thermoplastic resins (whether filled or not). Daher
already has a few small machines, and is
currently testing larger ones. Let's talk
again about this in a few months...

What role do Composites play in the
group overall?

D.B.: Daher, as a major independent

player in composite aerostructures, aspires to consolidate its position through
continued R&D, as demonstrated by
projects like Airbus' Wings of Tomor-

D.B.: The main challenge of the next
decade, for aeronautics, is to succeed in
addressing environmental issues. Our
projects are all in keeping with this approach. Composites and thermoplastics
in particular are true game changers for
aerostructures. They allow us to produce - at a reasonable cost - parts that
are lighter than the metal ones used before, but also more resistant. The gains
are significant in terms of performance
and with respect to limiting the ecological impact of air transport. This is the
crux of tomorrow's structures. Daher
will do all it can to maintain its leadership on these technologies, which enable aviation to resolve the twofold dilemma of competitiveness and reduced
impact on the environment.
Would you like to say anything specifically to the general players in composites?

D.B.: Innovate, follow your convic-

tions and don't miss the shift to Green
and the chance to make a positive impact on the environment!
More information:
www.daher.com

Placing the fibres
of the thermoset
wing spar

N°135 July - August 2020

/ jec composites magazine

Feature Aeronautics

D.B.: We're convinced of it! Daher is
already working on the R&D for a use
case based on our TBM airplane. It
demonstrates the validity of this technology and our ability to design and certify a model of a welded torsion box, as
part of the Trampoline project with the
French Civil Aviation Research Council
(CORAC), funded by the French Civil
Aviation Authority (DGAC).

The goal here is to spread the use of
this technology to our customers and
partners, rather than keeping it for ourselves.

Do you intend to invest specifically in
this field in the future?

http://www.daher.com

JEC COMPOSITES MAGAZINE - Issue #135 - July/August 2020

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