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    Item type:Publication, Access status: with files ,
    Process strategies for DED-Arc-manufactured preforms of Ti-15-3-3-3 in flowforming applications
    (Multidisciplinary Digital Publishing Institute (MDPI), 2026-06-02)
    Robert Lau
    ;
    Dahms, Frederik
    ;
    Hannes Zapf
    ;
    Henrik Wünsch
    ;
    Alexander Mädje
    Arc-based directed energy deposition (DED-Arc) processes represent a promising choice for developing flexible and eco-friendly manufacturing strategies for titanium components within the aerospace sector. Previous work has predominantly focused on using Ti-6Al-4V combined with machining for structural components. This study aims to establish a hybrid manufacturing route that integrates DED-Arc with flowforming (FF), focusing on the processability of Ti-15-3-3-3 in both stages. Sinusoidal path strategies for DED-Arc yield superior results in terms of process stability and geometrical accuracy, leading to near-net-shape preforms. In the FF process, a reduction of up to 80% in wall thickness across various techniques was achieved. The hybrid approach led to a buy-to-fly (BTF) ratio of 2.5:1, revealing the potential for significant material savings compared to conventional manufacturing routes.
    Publicationtype: Journal Article
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