Dynamic length metrology (DLM) for accurate dimensional measurements in a production environment by continuous determination and compensation of thermal expansion effects in turning steel: Paper

Leonardo De Chiffre, Daniel Gonzalez-Madruga, Mads Rostgaard Sonne, Giuseppe Dalla Costa, Jesper Henri Hattel, Hans Nørgaard Hansen

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    This work concerns the accurate dimensional measurement of metal parts directly in a production environment. Applying an approach with the simultaneous measurement of part dimension and temperature over time (dynamically) followed by modeling of the thermo-mechanical effects, the corrected length at 20 °C and its measurement uncertainty can be predicted. This paper describes a test campaign where the local diameter of a 40 mm cylindrical steel workpiece cooling down from an initial surface temperature after turning of 27 °C to an ambient temperature of 21 °C was predicted after 10 min with a systematic error of 0.5 µm and an expanded uncertainty (k = 2) of 0.9 µm.
    Original languageEnglish
    Article number094007
    JournalMeasurement Science and Technology
    Volume32
    Issue number9
    Number of pages8
    ISSN0957-0233
    DOIs
    Publication statusPublished - 2021

    Keywords

    • Dimensional metrology
    • Sub-micrometer accuracy
    • Production environment

    Fingerprint

    Dive into the research topics of 'Dynamic length metrology (DLM) for accurate dimensional measurements in a production environment by continuous determination and compensation of thermal expansion effects in turning steel: Paper'. Together they form a unique fingerprint.

    Cite this