Naval Group and Centrale Nantes print full-scale propeller blade for military applications

Naval Group, a French industrial group focusing on naval defence and marine renewable energy, and Centrale Nantes engineering school have successfully 3D printed their first full-scale propeller blade demonstrator using the Wire Arc Additive Manufacturing (WAAM) process.

This large, geometrically complex blade weighing over 300kg was produced under the framework of the Joint Laboratory of Marine technology, which aims to create qualified naval innovations for application in military shipbuilding.

The production of this propeller is part of longer roadmap to provide greater efficiency for ships at sea by improving performance-based areas such as propulsion and stealth.

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