The development of new manufacturing technologies opens up new perspectives for the production of propellers (diameter < 5 m), especially since the use of the established sand casting process as a technology is only partially competitive in today’s market. Therefore, different applications of generative manufacturing methods for the implementation into the production process were investigated. One approach is the mould production using additive manufacturing processes. Investigations showed that especially for large components with high wall thicknesses available systems and processes for sand casting mould production are cost-intensive and conditionally suitable. With our development of a large-format FDM printer, however, the direct production of large-format positive moulds for, for example, yacht propellers up to 4 m in diameter is possible. Due to the comparatively low accuracy requirements for the mould, the focus is on the durability of the drive system and the rigidity of this FDM printer. Equipped with simple linear technology in portal design and cubic design of the frame structure with rigid heated print bed, the aim is to achieve maximum material extrusion via the print head. The production of plastic models not only facilitates handling during the moulding process, but also allows considerable time and cost savings to be made during the running process. A further step in our development is the direct production of the components using WAAM. A possible concept for robot-supported build-up welding for the production of new innovative propeller geometries is presented using the example of a hollow turbine blade for a tidal power plant.


    Access

    Download


    Export, share and cite



    Title :

    Implementation of Innovative Manufacturing Technologies in Foundries for Large-Volume Components




    Publication date :

    2022-01-01


    Size :

    12 pages




    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English





    Innovative Production Technologies for Large Components

    Mueller, R. / Vette, M. / Ginschel, A. et al. | British Library Conference Proceedings | 2014


    Innovative Production Technologies for Large Components

    Ginschel, Andreas / Vette, Matthias / Mailahn, Ortwin et al. | SAE Technical Papers | 2014


    Floating foundries

    Thompson, T.B. | Engineering Index Backfile | 1928


    Floating foundries

    Bolt, J.E. / Baer, W.H. | Engineering Index Backfile | 1954


    Halbleitermarkt: Foundries mit Gewinnruckgang

    British Library Online Contents | 2008