Dimensional measurement of micro-moulded parts by computed tomography: Paper

S. Ontiveros, J.A. Yagüe-Fabra, R. Jiménez, Guido Tosello, Stefania Gasparin, A. Pierobon, S. Carmignato, Hans Nørgaard Hansen

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    Computed tomography (CT) is progressively assuming an important role in metrology applications and great efforts are being made in order to turn it into a reliable and standardized measuring technology. CT is typically used for non-destructive tests, but it is currently becoming very popular for dimensional metrology applications due to its strategic advantages such as the capability of performing measurements on both the component's surface and volume, allowing inspection possibilities to otherwise non-accessible internal features. This paper focuses on the dimensional verification of two micro-injection moulded components, selected from actual industrial productions, using CT metrological tools. For this purpose, several parts have been measured with two different CT machines, and the results have been compared with the measurements obtained by other measuring systems. The experimental work carried out and the analysis of the results provide valuable conclusions about the advantages and drawbacks of using CT metrology in comparison with other measuring systems when these techniques are employed for the quality control of micro-moulded parts.
    Original languageEnglish
    JournalMeasurement Science and Technology
    Volume23
    Issue number12
    Pages (from-to)Paper 125401
    Number of pages9
    ISSN0957-0233
    DOIs
    Publication statusPublished - 2012

    Keywords

    • Computed tomography
    • Micro-moulding
    • Uncertainty

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