Ultrasonic Testing Technology for the Complex Shaped Construction of Al-alloy Thin-plate

Due to the small thickness and complex-shape along with the particularity of operation situations for the complex shaped construction of Al-alloy thin-plates, the difficulty of the quality control was increased. The feasibility of the application of Lamb wave to inspect the complex shaped construction of Al-alloy thin-plate was discussed, the relative parameters were deduced in the experiments, and the technology was validated in the practices.