METHOD AND DEVICE FOR ULTRASOUND INSPECTION OF WELDS, PARTICULARLY WELDS OF BLADES ON THE DISK OF A BLADED DISK

摘要

Method and device for ultrasound testing of welds, particularly for welds of blades on the blisk of a bladed disk.;According to the invention, for testing element welds (6) on a body (4), forming a single-piece assembly (2) with these elements, the free end of a poly-articulated robot (12) is fitted with an ultrasound probe (24), fitted with an ultrasonic multi-element array transducer (14); the probe is inserted into the space (10) between two adjacent elements of the assembly; the probe is moved along three-dimensional trajectories along the profile of the element; sectorial electronic scanning is performed in at least two non-parallel testing planes; and ultrasound signals output by the transducer in order to test the welds are processed.

主权项

1. Method for testing element welds on a body, the body and the elements that are welded to it forming a single-piece assembly, comprising the following steps:
equip the free end of a poly-articulated robot with an ultrasound probe, fitted with an ultrasonic multi-element array transducer; insert the ultrasound probe into the space between two adjacent elements of the single-piece assembly, facing the welded joint, corresponding to one of the two elements for which the weld is to be tested; move the ultrasound probe along three-dimensional trajectories along the profile of the element for which the weld is to be tested; perform a sectorial electronic scanning in at least two non-parallel testing planes, preferably approximately orthogonal; and process the ultrasound signals output by the transducer in order to test the welds.