Abstract: A method and device for ultrasound testing of welds is provided. For testing element welds on a body forming a single-piece assembly with these elements, the free end of a poly-articulated robot is fitted with an ultrasound probe which is fitted with an ultrasonic multi-element array transducer; the probe is inserted into the space 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. The method and device may be applied to welds of blades on the blisk of a bladed disk.

Abstract: 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.

Abstract: A method of inspecting a part in immersion using a focused beam of ultrasound waves oriented perpendicularly to the surface of the part, the method including, when the axis of the focused beam is close to an edge of the part, tilting the axis towards the edge relative to the normal to the surface of the part in order to eliminate the lateral shadow zone over all or substantially all of the depth of the part.