Nondestructive testing of resistance spot welds using eddy current thermography.
Clicks: 176
ID: 87827
2018
The paper presents the use of eddy current thermography for detecting cracks in resistance spot welds. The sample is a three-sheet stack-up joined together by welding spots. Inductive Helmholtz coil is used for heating up the sample, and the thermal response of each spot is monitored using a cooled indium antimonide camera. The sequence of images captured is processed using the pulsed-phase thermography technique. The phase image is completed with a supplementary filtering operation to allow outlining defects. The result was confirmed with confocal microscopy inspection.
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taram2018nondestructiveapplied
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| Authors | Taram, Abdoulaye;Roquelet, Cyrielle;Meilland, Philip;Dupuy, Thomas;Kaczynski, Christine;Bodnar, Jean-Luc;Duvaut, Thierry; |
| Journal | Applied optics |
| Year | 2018 |
| DOI | 10.1364/AO.57.000D63 |
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