Computed tomography as a promising solution for industrial quality control and inspection of castings

Authors

  • S. Carmignato

Abstract

Recently X-ray Computed Tomography (CT) has
successfully entered the field of industrial quality control,
with interesting applications also for metal casting industry,
including non-destructive testing and dimensional
metrology. In particular, CT benefits of several advantages
with respect to traditional dimensional measuring systems,
as for example: simultaneous dimensional quality control
and material quality control, non-destructive inspection of
internal as well as external geometries, and reconstruction
of complete and high-density point-clouds in relatively
short time.
Due to these advantages, CT is increasingly recognised as
a very promising non-contact measuring technique and,
therefore, several manufacturers and research centres are
now investing in the further development of metrological
CT systems and in widening their application in industry.
This paper investigates accuracy and traceability of
dimensional measurements carried out by state of-theart
industrial CT systems, by examining selected results
obtained from the “CT Audit” project, which is the first
international interlaboratory comparison of CT systems
for dimensional metrology. The project was organized by
the Laboratory of Industrial and Geometrical Metrology,
University of Padova, Italy, and was carried out in the
period from September 2009 to June 2011, involving 15
CT systems, from research institutions and companies
working actively on industrial CT metrology in Europe,
America and Asia. The project was coordinated by Dr.
Simone Carmignato

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Published

2013-09-06

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Section

Articles