article published Matthias Busch author Daniel Köhler author Tino Hausotte author Robert Kupfer author Juliane Troschitz author Maik Gude author 157 department 43 department TRR 285: TRR 285 project TRR 285 - C: TRR 285 - Project Area C project TRR 285 – C04: TRR 285 - Subproject C04 project TRR 285 – C05: TRR 285 - Subproject C05 project <jats:p> Destructive micrograph analysis (MA) is the standard method for the assessment of clinched joints. However, during the joint preparation for the MA, geometric features of the joint can change due to elastic effects and closing cracks. X-ray computed tomography (CT) is a promising alternative to investigate the joint non-estructively. However, if the material properties of similar joining partners are the same, the CT is not able to correctly resolve surfaces in the joint that are close to or pressing onto each other. These surfaces are relevant for the determination of characteristic dimensions such as neck thickness and undercut. By placing a thin, highly radiopaque tin layer between the joining partners, the interfacial area in the reconstructed volume can be highlighted. In this work, a method for the localisation of the tin layer inside the joint as well as threshold value procedures for the outer joint contour in cross section images are investigated. The measured characteristic dimensions are compared with measured values from MA of the same samples and of samples without tin layer. In addition, possible effects of the tin layer on the joining point characteristics as well as problems of the MA are discussed. </jats:p> NDT.net2022 eng 1435-493410.58286/27519 2712 Busch, Matthias, et al. “Approach to Determine the Characteristic Dimensions of Clinched Joints by Industrial X-Ray Computed Tomography.” <i>E-Journal of Nondestructive Testing</i>, vol. 27, no. 12, NDT.net, 2022, doi:<a href="https://doi.org/10.58286/27519">10.58286/27519</a>. Busch M, Köhler D, Hausotte T, Kupfer R, Troschitz J, Gude M. Approach to Determine the Characteristic Dimensions of Clinched Joints by Industrial X-ray Computed Tomography. <i>e-Journal of Nondestructive Testing</i>. 2022;27(12). doi:<a href="https://doi.org/10.58286/27519">10.58286/27519</a> @article{Busch_Köhler_Hausotte_Kupfer_Troschitz_Gude_2022, title={Approach to Determine the Characteristic Dimensions of Clinched Joints by Industrial X-ray Computed Tomography}, volume={27}, DOI={<a href="https://doi.org/10.58286/27519">10.58286/27519</a>}, number={12}, journal={e-Journal of Nondestructive Testing}, publisher={NDT.net}, author={Busch, Matthias and Köhler, Daniel and Hausotte, Tino and Kupfer, Robert and Troschitz, Juliane and Gude, Maik}, year={2022} } Busch, M., Köhler, D., Hausotte, T., Kupfer, R., Troschitz, J., &#38; Gude, M. (2022). Approach to Determine the Characteristic Dimensions of Clinched Joints by Industrial X-ray Computed Tomography. <i>E-Journal of Nondestructive Testing</i>, <i>27</i>(12). <a href="https://doi.org/10.58286/27519">https://doi.org/10.58286/27519</a> M. Busch, D. Köhler, T. Hausotte, R. Kupfer, J. Troschitz, and M. Gude, “Approach to Determine the Characteristic Dimensions of Clinched Joints by Industrial X-ray Computed Tomography,” <i>e-Journal of Nondestructive Testing</i>, vol. 27, no. 12, 2022, doi: <a href="https://doi.org/10.58286/27519">10.58286/27519</a>. M. Busch, D. Köhler, T. Hausotte, R. Kupfer, J. Troschitz, M. Gude, E-Journal of Nondestructive Testing 27 (2022). Busch, Matthias, Daniel Köhler, Tino Hausotte, Robert Kupfer, Juliane Troschitz, and Maik Gude. “Approach to Determine the Characteristic Dimensions of Clinched Joints by Industrial X-Ray Computed Tomography.” <i>E-Journal of Nondestructive Testing</i> 27, no. 12 (2022). <a href="https://doi.org/10.58286/27519">https://doi.org/10.58286/27519</a>. 511922024-02-06T14:59:06Z2025-06-02T20:19:07Z