Once qualified, manufacturing processes for safety critical components in aero engines are “frozen”, that is no changes are permitted to be made without a time consuming and costly re-validation. Moreover, the material selection for components in modern aero engines, due to high mechanical and thermal loads in operation, is limited to a small range of super alloys. These difficult to machine titanium and nickel based alloys are on the one hand a significant expense factor themselves, and cause considerable costs due to high tool wear on the other hand. Thus, it is intended to carry out time and resource saving experiments and - ideally - being able to transfer available results to similar processes. Using smart experimental design deploying relationships of physical measures involved, the effort of testing can be reduced. This paper explains the method's mathematical background, how the selection of the regarded parameters is carried out as well as the reduction of system inputs. Furthermore the approach is demonstrated by means of experiments. Having analysed and discussed the experimental results, the method's efficiency is evaluated.


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    Title :

    Time and Cost Reduction in Evaluation Processes for New Parameters in Manufacturing Processes


    Additional title:

    Sae Int. J. Aerosp


    Contributors:

    Conference:

    Aerospace Technology Conference and Exposition ; 2009


    Published in:

    Publication date :

    2009-11-10


    Size :

    5 pages




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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