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Formability of spherical and large aluminum sheets

: Zimmermann, Frieder; Brosius, Alexander; Beyer, Eckhard; Standfuß, Jens; Jahn, Axel


American Institute of Physics -AIP-, New York:
20th International ESAFORM Conference on Material Forming 2017. Proceedings : 26th-28th April 2017, Dublin City University, Ireland
New York, N.Y.: AIP Press, 2017 (AIP Conference Proceedings 1896)
ISBN: 978-0-7354-1580-5
Art. 080009
International Conference on Material Forming (ESAFORM) <20, 2017, Dublin>
Conference Paper
Fraunhofer IWS ()
material forming; aircraft; amorphous metal

The novel aluminum alloy AlMgSc (AA5028) shows a high potential for aeronautical applications, especially to replace the currently used material for structural components within metallic aircraft fuselages [1]. As AlMgSc sheets cannot be stretch formed at room temperature due to cracking in the clamping zones, an alternative technology called “creep-forming” was investigated by Jambu [2]. Nevertheless, creep-forming is only applicable for panels to be formed in moulds with small curvatures, because shaping double-curved geometries with small radii of curvature tends to buckling [3]. Hence, the formability of large spherical aluminum sheets as double-curved geometries is investigated.