Abstract: A robotised hammering method for hammering a weld seam (C) made on a base surface (S) of a metal workpiece (V) using a robotised system (32), comprising the following steps:—controlling the robotised system (32) provided with an effector (35; 38) carrying a scanning tool (30) in such a way as to follow, with the scanning tool (30), an initial path along the weld seam (C), said initial path having been determined from the digital model of the workpiece or from the actual workpiece,—acquiring, by means of the scanning tool (30), along the initial path, local data concerning the elevation and position of the weld seam and of the area or areas of the base surface close to the weld seam,—calculating, from the elevation and position data acquired in this way and from the initial path, a corrected path, and—controlling the robotised system (32) provided with an effector (40; 38) carrying a hammering tool (41) to hammer the weld seam along this corrected path.

Abstract: The present invention provides a method of shot peening at least a portion of a rotary machine comprising a rotor. Shot peening is carried out with a rotor which is at least partly assembled. The method comprises: fixing a system for supporting at least one acoustic assembly to the machine; and shot peening at least one region of the machine using projectiles which are moved by the acoustic assembly.

Abstract: The present invention provides a method of shot peening at least a portion of a rotary machine comprising a rotor. Shot peening is carried out with a rotor which is at least partly assembled. The method comprises: fixing a system for supporting at least one acoustic assembly to the machine; and shot peening at least one region of the machine using projectiles which are moved by the acoustic assembly.

Abstract: Shot for use in a peening installation, the shot having: hardness greater than or equal to 800 HV; density greater than or equal to 8 g/cm3; and pieces having a maximum dimension less than or equal to 1.5 mm.

Abstract: The present invention provides a method of shot peening at least a portion of a rotary machine comprising a rotor. Shot peening is carried out with a rotor which is at least partly assembled. The method includes fixing a system for supporting at least one acoustic assembly to the machine; and shot peening at least one region of the machine using projectiles which are moved by the acoustic assembly.

Abstract: The present invention provides a method of shot peening at least a portion of a rotary machine comprising a rotor. Shot peening is carried out with a rotor which is a least partly assembled. The method includes fixing a system for supporting at least one acoustic assembly to the machine; and shot peening at least one region of the machine using projectiles which are moved by the acoustic assembly.

Abstract: A part to be shot peened includes at least one thin wall (12?) defining two opposite main faces, the square root of the area of each face being greater than the mean distance between the two faces by a factor of at least five, and preferably by a factor of at least ten. According to the method, the part is caused to rotate at least intermittently relative to one or more vibrating surfaces, with at least one of the main faces being exposed to projectiles (6) set into motion by one or more of the vibrating surfaces, treatment taking place progressively on the face(s) so as to impart compression stresses thereto, with a portion only of the part being treated at any one time and with regions of the part preferably being exposed on several occasions to the projectiles, with relative rotation taking place between the exposures.

Abstract: Shot for use in a peening installation, the shot having: hardness greater than or equal to 800 HV; density greater than or equal to 8 g/cm3; and pieces having a maximum dimension less than or equal to 1.5 mm.

Abstract: A method of shot blasting a part comprising at least one thin wall (12″) defining two opposite main faces, the square root of the area of each face being greater than the mean distance between said two faces by a factor of at least five, and preferably by a factor of at least ten, in which method said part is caused to rotate at least intermittently relative to one or more vibrating surfaces, with at least one of the main faces being exposed to projectiles (6) set into motion by means of one or more of said vibrating surfaces, treatment taking place progressively on said face(s) so as to impart compression stresses thereto, with a portion only of the part being treated at any one time and with regions of the part preferably being exposed on several occasions to the projectiles, with relative rotation taking place between said exposures.

Abstract: The invention relates to apparatus for surface treatment by impact, the apparatus comprising a vibrating surface and at least one projectile suitable for being projected towards the surface to be treated by said vibrating surface. The apparatus includes retaining means for keeping each projectile captive in the apparatus.