METHOD AND SYSTEM FOR DETECTING WELDING ANOMALY

PROBLEM TO BE SOLVED: To detect without fail a welding anomaly that occurs in a welding arc, molten pool, etc., during a welding work using a technique of image processing.SOLUTION: This method for detecting welding anomaly includes the step of imaging the situation of a molten pool present on a wor...

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Bibliographische Detailangaben
Hauptverfasser:	OKAMOTO AKIRA, HAMAMOTO KAZUHISA
Format:	Patent
Sprache:	eng
Schlagworte:	CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To detect without fail a welding anomaly that occurs in a welding arc, molten pool, etc., during a welding work using a technique of image processing.SOLUTION: This method for detecting welding anomaly includes the step of imaging the situation of a molten pool present on a work W during welding with two images in a stereoscopic view, calculating a three-dimensional shape of the molten pool the pattern of the surface of the molten pool imaged in the two images, and detecting an anomaly of the welding part on the basis of the calculated three-dimensional shape of the molten pool. At this time, the molten pool on the work are imaged using two imaging cameras synchronized with each other.