The world’s first class-approved 3D printed ship’s propeller, the WAAMpeller, has been unveiled at Damen Shipyard Group’s headquarters in the Netherlands and has been approved to be installed on a ship.
Containing 298 layers of 3D printing, the propeller is the result of a collaboration between RAMLAB, Promarin, Autodesk, Bureau Veritas and Damen. Bureau Veritas is the certification agency which worked to certify every step of the production process.
The five-company partnership started pooling their collective resources and knowledge to develop the world’s first 3D printed ship’s propeller seven months ago. Promarin provided the design of the triple-blade propeller. The Port of Rotterdam’s RAMLAB (Rotterdam Additive Manufacturing LAB) carried out fabrication using Wire Arc Additive Manufacturing (WAAM) techniques, supported by Autodesk’s expertise in software, robotics and additive manufacturing.
Damen provided Research and Development resources in addition to one of its Stan Tug 1606 vessels for operational testing purposes. Bureau Veritas’ role was to verify the entire development, production and testing process.
The consortium reached its first milestone in August with the completion of the first WAAMpeller prototype. With valuable experience gained, production of the second version, with the aim of achieving class certification, started immediately.
“Production of the second WAAMpeller was greatly improved because we had learned a lot from producing the prototype,” says Vincent Wegener, Managing Director RAMLAB. “This mainly concerned the hardware/software interaction because, when laying down 298 layers of Nickel Aluminium Bronze alloy, it is important to have a tight control on all process parameters.”
With the second WAAMpeller complete, the project then progressed to the testing stage, the first phase of which saw the WAAMpeller installed on a Damen Stan Tug 1606. “This particular vessel is of extra interest in that it is equipped with a Tier III compliant engine, making it future proof for the ever stricter environmental rules and regulations in harbours around the world”, comments Martin de Bruijn, Managing Director Workboats at Damen.
Damen’s testing engineers performed operational testing of the WAAMpeller on 20 November, with representatives from all of the consortium partners present. Furthermore, the day’s procedures were overseen by Bureau Veritas surveyors throughout.
Martijn Nieuwenhuijs, Chief Executive of Bureau Veritas Marine & Offshore Netherlands comments: “Bureaus Veritas has witnessed every step of the making and testing of the WAAMpeller. Some challenges needed to be tackled along the way, but the final product is technically sound and ready for commercial application.”
The testing programme included bollard pull and crash stop testing in addition to speed trials. “Of course, we were all a bit nervous beforehand – after all, innovation always comes with a certain amount of unknowns – but the testing was a success,” says Kees Custers, Damen Project Engineer R&D enthusiastically.
“We are pleased to report that the WAAMpeller displayed the same behaviour as a conventional casted propeller in all of the tests. This includes the same level of performance in the crash stop scenario, which – going from full throttle ahead to full throttle reverse – is the heaviest loading that a propeller can experience.
Looking at the bigger picture, Mr Castelein went on to identify the implications of the WAAMpeller project on the maritime industry. “This project has shown the shipbuilding industry the potential of 3D printing techniques for the production of vessel components. We continue our intensive research into this very exciting area.”
3D printing of aircraft and other defense parts certainly transforms the military support environment but the threat of counterfeit parts could fuel a grey market. “The threat of counterfeit parts from easily accessible 3D printers, coupled with the endless amount of designs available on the Internet, could fuel a black market, Graham Grose, industry director at the IFS Aerospace & Defence Center of Excellence said in an interview with Defenseworld
India's Hindustan Aeronautics (HAL) INR 458 crore ($73.7 million) 25-kN aircraft engine project is all set to have 3D printing technology for its components, Deccan Herald Daily reported today
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