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- Arbo S. M., Saai A., Sørli S., Dybdahl C., Onsøien M., and Nedreberg M.L. Optimization of Laser Metal Deposition process for 2205 Duplex Stainless Steel. Proceeding of the 25th International Conference on Material Forming (2022). Link: https://www.scientific.net/KEM.926.90
- Benjaminsen C. Om få år kan skipene 3D-printe sine reservedeler Gemini publications 20.01.2022 (Norwegian Media). https://www.sintef.no/siste-nytt/2022/om-fa-ar-kan-skipene-3d-printe-sine-reservedeler/
- D2-1: Requirements on the project demonstrators and manufacturing processes.
The integration of AM in the supply chain of maritime components needs commune understanding of the technology advantages and limitations versus the requirements. The industries in the supply chain need to establish effective and appropriate plans for manufacturing and qualification procedure. Such plan should be based on class society standards and guidelines to ensure the certification of the manufacturing process and manufactured component. This report overviews some of current standards and guidelines related to directed energy deposition (DED) processes of metals. It defines the requirements on the project demonstrators (water jet impeller, propeller blade and pump impeller) according to class society guidance. It including requirements on geometry, surface finishing, physical and mechanical properties as well as requirements testing.
- D2-2: Plans for DED manufacturing and qualification testing.
This report includes the plans for manufacturing and qualification testing of the project demonstrators (water jet impeller, pump impeller and propeller blade). The manufacturing and testing procedures for each demonstrator were planned based on the requirements in accordance with class society guidance (deliverable D2-1).
D3-1 Report describing upcycled grinding waste as powder for DED.
The FlexiMan project aims to develop a sustainable circular AM process chain for maritime components by recycling aluminium bronze grinding waste to be used as raw material to manufacture ship propellers with a laser-powder DED process. In this report, the developed process chain for recycling, the performed experiments investigating the various process steps and the ongoing experiments are described. Furthermore, established cooperations with specialized companies and research institutes are described.
D3-2 Report describing quality assessment of conventional and recycled powder for the DED processes.
This report summarizes the quality assessment methods and results of conventional DED powder as well as of (recycled) grinding chips. The conventional powders are used to produce the water jet impeller from duplex steel, the hybrid pump impeller from IN625 and the propeller blade from aluminium bronze. The propeller blade will also be manufactured from recycled aluminium bronze grinding chips. The methods described in this report are performed to assess the different powder properties, and subsequently are utilized to define suitable powder characteristics the should be achieved in the chip recycling steps.
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