Engineering school have 3D printed the first hollow propeller blade demonstrator. A Centrale Nantes spin-off and subsidiary of Naval Group, helmed the design of the blade. With funding from the European Commission, Centrale Nantes and Naval Group are leading the project on the production of innovative propeller demonstrators to improve the operational capabilities of ships. Centrale Nantes and Naval Group are specifically using metal additive manufacturing to improve the vessel propulsion of ships. Naval Group and Sirenha relied on the resources and knowledge provided by Centrale Nantes to manufacture the propellor blades. The long-standing collaborative project is operating through the framework of the Joint Laboratory of Marine Technology, opened by both Centrale Nantes and Naval Group in 2016. Naval Group and Centrale Nantes have collaborated to manufacture propellor blades on a prior occasion, also utilizing WAAM technology.
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