Page 35 - Research Report 2021 - Institut für Leichtbau und Kunststofftechnik

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LignoBraid

Biobased lightweigth hollow profiles with
braided wood tapes

With its distinctive anisotropy and high specific stiffnesses, wood offers great Period
application potential for resource-saving lightweight design. In contrast to 01.03.2021 – 31.08.2023
classic fiber composites such as glass-fiber reinforced plastics, however, it has
so far only been possible to a limited extent to produce geometrically com- Project management
plex wooden lightweight hollow profiles with a load path-adapted fiber ori- Prof. Dr.-Ing. habil. Maik Gude
entation. The aim of the FNR project LignoBraid is to overcome this deficit by
establishing a closed process chain from the production of continuous wood Contact
tapes, through their processing into preforms with defined fiber orientation Dr.-Ing. Robert Kupfer
using the braiding process, to the manufacture of lightweight hollow profiles. Alexander Liebsch

For this purpose, veneer sheets are first joined into continuous bands, cut to Project partners
a defined width and made available for the braiding process. This has to be Chair of Wood and Fibre Material
adapted to the specific requirements of the wood tapes and a parameter set Technology (HFT) at the Institute of
identified for high-quality and efficient processing. The preforms produced in Natural Materials Technology at the
this way are then infiltrated with bio-based plastics, with the aim of reducing TU Dresden
the amount of plastic used to a minimum. Thus, the inherent light properties
of the wood can be used to advantage. The developed process chain will finally Funding
be evaluated in collaboration with a consortium from industry with regard to
its ecological and economic advantages.

Federal Ministry of Food an Agriculture
(BMEL)
Funding code: 2220HV059B
Managed by:

Veneer Wood tape
Agency for Renewable Resources (FNR)

Preform Hollow profile

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