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M. Sokac, Z. Santosi, D. Vukelic, M. Katic, M.N. Durakbasa, I. Budak:
"Geometric Tolerancing Analysis of Multi-material Components (MMCs) Obtained by Industrial X-Ray Computed Tomography";
in: "Digital Conversion on the Way to Industry 4.0 - Selected Papers from ISPR2020, Lecture Notes in Mechanical Engineering", ISSN 2195-4356; Springer Nature Switzerland AG, Cham, Switzerland, 2021, ISBN: 978-3-030-62783-6, 607 - 613.

The rising demand in recent years for the application of X-ray computed tomography (CT) has been influenced by its non-destructive abilities and accuracy. The demand for application of X-ray CT on Multi-Material components (MMCs) has also increased. However, due to the presence of two or more materials during X-ray CT scanning, the consequent analysis of MMCs can have a negative impact on the results. This research aims to investigate the application of advanced algorithms and their influence on the accuracy of the X-ray CT images for performing geometric dimensioning and tolerancing (GD&T). This paper presents a case study where the application of such method was investigated in two case studies containing MMCs. Results show that the newly developed methods, such as the one shown in this paper, can improve borders of segmented MMCs on X-ray CT images which will result in more accurate results regarding GD&T.

Geometric dimensioning and tolerancing (GD&T) Computed tomography X-ray CT MMC