Advances in traceability of Freeform Measurements on CMMs

Enrico Savio, Hans Nørgaard Hansen, Erik Larsen, Leonardo De Chiffre

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


    Poster Presentation: The work here presented is concerned with the calibration of freeform surfaces using coordinate measuring machines (CMMs). The approach to calibration is based on repeated measurements of an uncalibrated object in multiple orthogonal positions. The basic idea is to eleminate the need for complex calibrated items to be used in the substitution method for uncertainty assessment. The procedure is beeing investigated as one of the possible approaches for the new ISO 15530 series on uncertainty assessment for CMMs. The calibration of freeform surfaces is here presented as an example. A turbine blade has been calibrated using a CAD-based measuring system and a software tool to perform data collection, analysis, calculation and display of uncertainty. The measurands are represented by the local deviations from nominal points, with spacing of 0.2 mm in 9 different sections of the turbine blade.
    Original languageEnglish
    Title of host publicationproceedings of the Euspen 2nd International Conference
    PublisherSt. Martin's Press
    Publication date2001
    Publication statusPublished - 2001
    Event2nd euspen International Conference - Turin, Italy
    Duration: 27 May 200131 May 2001
    Conference number: 2


    Conference2nd euspen International Conference


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