Approaches to the Calibration of Freeform Artefacts on Coordinate Measuring Machines

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    Abstract

    The paper compares two different experimental methods to establish the traceability of freeform measurements on coordinate measuring machines: i) uncertainty assessment using Modular Freeform Gauges, and ii) uncertainty assessment using Uncalibrated Objects. The first approach is an application to freeform geometries of the method described in ISO TS 15530-3 based on comparisons. The second approach is inspired by the procedure currently being developed within ISO TC213, involving repeated measurements of a given object in different orientations with variation of measuring parameters etc. The feasibility of the two approaches for freeform geometries is demonstrated through the calibration of a turbine blade.
    Original languageEnglish
    JournalC I R P Annals
    Volume51/1/2002
    Pages (from-to)433-436
    ISSN0007-8506
    Publication statusPublished - 2002

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