Low pressure turbine blades (LPT) made by investment casting from intermetallic titanium aluminide alloys for aero-engine applications in lengths between 200 and 400 mm require very demanding and sophisticated process for their manufacturing. Middle line shrinkage porosity along the airfoil and dimensional tolerances by near-net-shape casting are especially sensitive issues concerning Quality assurance. Nevertheless the urgency to manufacture safer environmental-friendly high performance aero-engines requires the introduction of new high performance components like LPT blades made of TiAl, which are about 50% lighter than their nickel-based counterparts. The present work is based on process engineering taking into account different melting and casting technologies in order to develop a dependable and reproducible series production route for TiAl LPT blades including the corresponding process parameter window.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Investment casting technology for production of TiAl low pressure turbine blades - Process engineering and parameter analysis


    Contributors:

    Published in:

    Publication date :

    2011


    Size :

    5 Seiten




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





    Investment casting - a multi-process technology

    Barnett, S.O. | Tema Archive | 1989


    Investment cost turbine component Advanced machining techniques for turbine blades

    Heavisides,I.D. / Dawson,D.J. / Johns,A. et al. | Automotive engineering | 1982


    Optimization of high Nb-TiAl alloy impeller investment casting based on ProCAST software

    LIU Jinhu / JI Zhijun / LI Feng et al. | DOAJ | 2021

    Free access