P19 - Investigation of the Shape Deviation for Gas Pores Meas-Ured with X-Ray Computed Tomography

Event
SMSI 2023
2023-05-08 - 2023-05-11
Nürnberg
Band
Poster
Chapter
Poster
Author(s)
B. Baumgärtner, T. Hausotte - Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen (Germany)
Pages
316 - 317
DOI
10.5162/SMSI2023/P19
ISBN
978-3-9819376-8-8
Price
free

Abstract

The component porosity is a quality attribute in additive manufacturing (AM). One way for a non-destructive three-dimensional determination of the porosity or the shape of pores is X-ray computed tomography (CT), which enables to investigate the influence of AM process parameters on the appearance and characteristics of pores. Due to the lack of a porosity standard for CT, a traceable measurement uncertainty determination is not possible. To investigate the capability of CT for porosity analysis, measurements of an optically measurable glass specimen that contains highly spherical pores are used to validate results from a digital twin of the CT system. The influence of a fixed gray value threshold for the porosity analysis algorithm and the deviation of the surface determination are investigated.

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