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: A method for treating a composite part including a metal protective duct fixed to a core by a binder, so as to be able to separate the duct from the core, including the steps of: subjecting the metal duct to compressive stresses tending to lengthen same, and b) if necessary, heating or cooling the part in order to soften or weaken the binder.

Abstract: Ultrasonic peening treatment is desirable where an application of a compressive stress is helpful to reduce the incidence of crack formation on highly stressed parts. Ultrasonic peening treatment can be performed in field applications without requiring a rotor to be removed from the machine. The system includes an acoustic element that excites peening media within a peen chamber. A frame is attachable to an assembled turbine rotor component and includes support structure engageable with the acoustic element. The frame is cooperable with a chamber tooling that defines and encloses the peen chamber together with the turbine rotor component.

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: A system for ultrasonically peeing surfaces includes a sonotrode comprising a body material and a vibrating surface, the vibrating surface coated with a coating material having a hardness greater than the body material, a treatment chamber defined at least in part by the vibrating surface, and at least one piece of shot within the treatment chamber to be excited by the vibrating surface of the sonotrode, the at least one piece of shot having a hardness greater than or equal to 800 HV.

Abstract: Ultrasonic peening treatment is desirable where an application of a compressive stress is helpful to reduce the incidence of crack formation on highly stressed parts. Ultrasonic peening treatment can be performed in field applications without requiring a rotor to be removed from the machine. The system includes an acoustic element that excites peening media within a peen chamber. A frame is attachable to an assembled turbine rotor component and includes support structure engageable with the acoustic element. The frame is cooperable with a chamber tooling that defines and encloses the peen chamber together with the turbine rotor component.

Abstract: A system for ultrasonically peeing surfaces includes a sonotrode comprising a body material and a vibrating surface, the vibrating surface coated with a coating material having a hardness greater than the body material, a treatment chamber defined at least in part by the vibrating surface, and at least one piece of shot within the treatment chamber to be excited by the vibrating surface of the sonotrode, the at least one piece of shot having a hardness greater than or equal to 800 HV.

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: 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.