B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
B23K 26/02 (2006.01) B23K 26/00 (2006.01) G01B 11/04 (2006.01) G01B 11/08 (2006.01) G01N 21/00 (2006.01) G01N 21/84 (2006.01)
Patent
CA 2413930
The invention concerns a method for identifying defects in a laser beam weld seam, which consists in: acquiring in real time at least two measuring signals delivered by optical sensors (C1 to C6) detecting light intensity variations in the plasma formed by the laser beam (14); then, in combining said signals by applying thereto a mathematical operator; then comparing the resulting combined signal to a predetermined threshold and depending on the result of said comparison, diagnosing the presence or absence of a defect corresponding to the operator used.
Procédé de détection et d'identification de défauts dans un cordon de soudure réalisé par faisceau laser. Selon ce procédé, on acquiert en temps réel au moins deux signaux de mesure délivrés par des capteurs optiques (C1 à C6) détectant des variations d'intensité lumineuse du plasma formé par le faisceau laser (14). On combine ensuite ces signaux en leur appliquant un opérateur mathématique. Le signal combiné obtenu est alors comparé à un seuil prédéterminé. Selon le résultat de cette comparaison, on diagnostique la présence ou l'absence d'un défaut correspondant à l'opérateur utilisé.
Aerospatiale Matra Ccr
Goudreau Gage Dubuc
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