Patent application number | Description | Published |
20080264129 | Shot, Devices, And Installations For Ultrasonic Peening, And Parts Treated Thereby - Shot for use in a peening installation, the shot having:
| 10-30-2008 |
20080282756 | Shot peening methods and units - 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:
| 11-20-2008 |
20090095042 | Method for Surface Blasting Cavities, Particularly Cavities in Gas Turbines - The invention relates to a method for the surface blasting of hollow spaces or cavities, especially of cavities of gas turbines. According to the invention, shot balls are accelerated with the aid of at least one vibrator, whereby the shot balls accelerated in the ultrasonic range are directed onto surfaces of a cavity that is to be blasted. In that regard, the vibrator is preferably positioned with a small spacing distance, preferably with a spacing distance on the order of magnitude of the diameter of the shot balls utilized for the blasting, from the cavity to be blasted. | 04-16-2009 |
20090200358 | ULTRASOUND WELDING DEVICE - The present invention relates to a device for ultrasound welding of at least two overlapping sheets, comprising: at least one sonotrode for emitting ultrasound, at least one reaction part disposed at least partially facing the sonotrode, at least one intermediate wall other than a roller, movable relative to the at least one sonotrode and the reaction part, said intermediate wall at least partially defining a gap in which the sheets to be welded are inserted so as to execute at least one seal weld extending parallel in the direction of movement of the intermediate wall at the gap. At least one of the intermediate wall and the sonotrode has a transverse section comprising at least one relief projecting toward the gap. | 08-13-2009 |
20090288463 | SHOT, DEVICES, AND INSTALLATIONS FOR ULTRASONIC PEENING, AND PARTS TREATED THEREBY - 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. | 11-26-2009 |
20090308123 | Ultrasonic Peening Treatment of Assembled Components - 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. | 12-17-2009 |
20100147047 | Method of Making an Udersea Pipe, the Method Including Peening Assembly Welds Inside the Pipe - A method of making undersea steel pipes, by assembling unit pipe elements together end-to-end by welding, the steel or metal alloy weld beads of said welds being disposed on the outside of the pipe, wherein localized peening is performed on the inside of the pipe to increase the compression of the steel or metal in the vicinity of the welds and over the adjacent peripheral inside surface of the pipe on either side of the weld so as to create a swath of surface that has been peened over a limited distance L in the axial longitudinal direction of said pipe. The peening is preferably performed using a wheeled carriage fitted with a peening tool. | 06-17-2010 |
20150013412 | Processes and Apparatus for Surface Modification - The present application relates to processes for changing the composition of surfaces and the application of such processes. The process involves the introduction of a surface augmentation composition within an aerosol formed from a liquid precursor with bombarding particles in an ultrasonic shot peening apparatus. | 01-15-2015 |