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28th October 2019, Filton

GKN Aerospace progress with large composite wing structure technology

RTM midsize demonstrator tool. © GKN Aerospace

RTM midsize demonstrator tool. © GKN Aerospace

GKN Aerospace has reached a major milestone in the Wing of Tomorrow programme after designing, manufacturing and delivering a mid-scale demonstrator tool to the GKN Aerospace Filton facility in the UK.

This tool provides a fully functioning automated low-pressure RTM system for the Airbus-led programme’s composite wing spar. The spar is considered one of the most challenging aerospace components to design and manufacture, and this will be one of the first times that RTM technology has been used at this scale.

GKN Aerospace engineers have used proven tool-making knowledge from the automotive industry in developing the demonstrator. The four-metre development testbed will deliver a rate 60 automated manufacturing solution and significantly improve the productivity of the composite manufacturing process, by removing one third of the production steps involved.

Technology will be moving from traditional, pre-impregnated resin material to dry composite fibres that are injected with resin as part of the initial manufacturing process for the wing spar. This will result in significant weight savings.

GKN Aerospace is using its world-leading capability in the design and manufacture of composite wing spars and assembly of fixed trailing edges – as proven on the A330, A400M and A350 – to mature the key technologies. The development work will stretch into 2021.

 “We are proud to be a partner of Airbus in the Wing of Tomorrow research programme and excited about the delivery of the mid-size demonstrator tool,” said John Pritchard, GKN Aerospace’s CEO for Aerostructures and Systems Europe and Asia. “This development confirms GKN Aerospace’s world-leading position in not just RTM technology, but also advanced aerostructures manufacturing. Combined with the Aerospace Technology Institute, which is providing vital support for the UK’s position on the next generation of aircraft, we will be able to deliver breakthroughs in technology as well as benchmark levels of price, quality and repeatability.”

www.gknaerospace.com

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