French-based STELIA uses WAAM 3D printer for large-scale fuselage panel

The company designed a demonstrator for metallic self-reinforced fuselage panels that includes stiffeners directly manufactured on the surface through additive manufacturing.

0 February 26, 2018
Staff

Stelia panel 3D printingSTELIA Aerospace, a French company that designs and manufactures aerostructures, shows off a 3D printed fuselage panels.

The company designed a demonstrator for metallic self-reinforced fuselage panels that includes stiffeners directly manufactured on the surface through additive manufacturing. Eventually, this new technique will be used in replace of affixing the stiffeners using fixing screws and welding.

The demonstrator, which measures 1 sq. meter, was manufactured using a robotic tool, through the deposit of aluminium wire merged by electric arc (WAAM – Wire Arc Additive Manufacturing). It presents a new disruptive design for panel stiffeners, derived from the fuselage topological optimisation studies which have been carried out by STELIA Aerospace and CT Ingénierie since several years.

With support from Constellium and Ecole Centrale de Nantes, STELIA Aerospace is currently studying how AM can be used in production, where material is added by deposit instead of being removed by machining. The company is also exploring topological optimisation studies associated to 3D print demonstrators for elementary parts (such as fittings), large dimension parts (frames) and large sub-assemblies.

architecture 3d printingThe team hopes to define the benefits found in new designs, the integration of functions, less ecological impact through the use of less material, weight gains and less recurring manufacturing costs.

The project was done in partnership with Constellium, Centrale Nantes and CT Ingénierie, in the scope of the collaborative R & T project DEFACTO (DEveloppement de la Fabrication Additive pour Composant TOpologique).

www.stelia-aerospace.com


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