ULTRASONIC FLAW DETECTION METHOD, ULTRASONIC FLAW DETECTION DEVICE, AND WELD INSPECTION METHOD FOR PANEL STRUCTURE

摘要

Provided are an ultrasonic flaw detection method and an ultrasonic flaw detection device with which inspection of a weld (404) of a member having a complex cross sectional shape can be accomplished using a computing device that is readily applicable. Also provided are an ultrasonic flaw detection method or an ultrasonic flaw detection device with which inspection of a weld line (210) or a weld (404) of a panel structure formed by welding together members having a complex cross sectional shape can be accomplished using a computing device that is readily applicable. A region of interest ROI (402) for inspection is set in the weld line (210), including a location that allows generation of reflected or diffracted ultrasonic waves produced due to the shape of the member being inspected, and a flaw image (401) of an area including the ROI (402) is acquired and inspected for the presence of welding flaws.