Superalloys are predominantly employed to crucial aviation hot-end components such as turbine rear casings,diffusers,and pre-swirl nozzles. The investment casting technology supersedes “casting + welding” forming approaches,which reduces the number of parts and processing procedures,offers improved reliability and mass reduction. Therefore,investment casting is a pivotal technology for aviation component manufacturing. However,the casting of complex thin-walled components encounters challenges with dimensional accuracy,impacting engine aerodynamic performance and assembly precision,which has become a bottleneck problem restricting the manufacturing quality of key structural components of aero-engines in China for a long time. This article reviews the current advancement in the dimensional accuracy control for superalloy investment castings at home and abroad. A forward-looking analysis and discussion on development trends are conducted,particularly focusing on digital and intelligent technologies. There is an urgent need to build a digital twin platform for investment casting in the future and to develop more advanced accurate,quantitative and intelligent prediction methods for dimensional deformation and die profile design theory.


    Access

    Download


    Export, share and cite



    Title :

    Research progress on dimensional accuracy control technologies of complex thin-walled superalloy investment castings for aero-engines


    Contributors:
    CUI Jiayu (author) / WANG Donghong (author) / XIAO Chengbo (author) / SHU Da (author) / SUN Baode (author) / GUAN Bang (author) / DING Zhengyi (author)


    Publication date :

    2024




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown





    Aero-Engines

    Online Contents | 2011


    Aero Engines

    Online Contents | 1993


    Aero-Engines

    Online Contents | 2003


    Aero-Engines

    Online Contents | 2008