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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