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Wednesday, June 10, 2009 - 2:00 PM
LAT4.2

Aleris' Advanced Aluminium Products for Aircraft Structural Components

S. Spangel, A. Buerger, I. Kroepfl, Aleris Aluminum Koblenz GmbH, Koblenz, Germany

In order to achieve the aggressive targets of increased passenger and cargo capacities as well as lower fuel burn and larger ranges the aircraft industry is constantly looking for new aluminium alloys offering improved performance. Furthermore the application of aluminium in future aircrafts being in competition with fibre reinforced composites requires that the performance capability of modern aluminium alloys is fully utilized.

To meet these requirements Aleris Aluminum Koblenz is working on new AA7x81 and 2xxx type sheet and plate alloys which offer benefits in terms of performance, weight and cost savings compared to conventional alloys.

This presentation covers the recent Aleris 7xxx and 2xxx developments including alloys currently being internationally registered as well as newly developed alloys and will outline some future developments. Focus will be placed on AA7x81 plate material available in a wide thickness range which offers superior strength combined with high fracture toughness. Applications may include wing components (spars) or fuselage frames. Additionally a property overview of the corresponding sheet development program will be part of the presentation.


Summary: In order to achieve the aggressive targets of increased passenger and cargo capacities as well as lower fuel burn and larger ranges the aircraft industry is constantly looking for new aluminium alloys offering improved performance. Furthermore the application of aluminium in future aircrafts being in competition with fibre reinforced composites requires that the performance capability of modern aluminium alloys is fully utilized. To meet these requirements Aleris Aluminum Koblenz is working on new AA7x81 and 2xxx type sheet and plate alloys which offer benefits in terms of performance, weight and cost savings compared to conventional alloys. This presentation covers the recent Aleris 7xxx and 2xxx developments including alloys currently being internationally registered as well as newly developed alloys and will outline some future developments. Focus will be placed on AA7x81 plate material available in a wide thickness range which offers superior strength combined with high fracture toughness. Applications may include wing components (spars) or fuselage frames. Additionally a property overview of the corresponding sheet development program will be part of the presentation.