A method and a device for induced formation of solid lubricant comprises providing (S10) of an article (10) to be processed. The article is exposed (S20) to a process fluid (34) comprising a solvent. impact media (20) and additives of solid-lubricant precursor substances. The solvent is a low-volatile high-flash solvent. The impact media are non-abrasive hard particles. The additives of solid-lubricant precursor substances are surface-reactive compounds serving as carriers of at least one of S, P, B and of at least one refractory metal. A velocity difference between surfaces (12) of the article and the impact media is created (S30). This causes impacts between the impact media and the article. Solid lubricant substances are formed (S40) on the surfaces by chemical reactions. The chemical reactions comprise the solid-lubricant precursor substances and are induced by the energy of the impacts. The chemical reactions take place at the surfaces

A peening device is provided with: peening impact pins that impact on a surface to be worked; a device main body that uses vibration to move the peening impact pins back and forth with respect to the surface to be worked; servo motors (22x, 22y) that adjust the inclination of the device main body with respect to the surface to be worked; laser displacement gauges (20A, 20B, 20C, 20D) that detect the device angle; and a vibration sensor (18) that detects the vibration state of the device main body. Furthermore, a control device (40) for the peening device controls the servo motors (22x, 22y) such that the vibration state detected by the vibration sensor (18) is a predetermined vibration state. Thus, the peening device carries out excellent peening by conforming to the surface to be worked, the shape of which changes from moment to moment because of the peening.

The invention relates to a hammering device (10) for influencing the subsurfaces of workpieces (14) comprising a beating tool (16) for acting on the workpiece (14), a beating mechanism (18) which has a beater (20) for producing a beating pulse on the beating tool (16), and a drive (32) for driving the beating mechanism (18), wherein the beating mechanism (18) has at least a second beater (20) for producing a beating pulse on the beating tool (16). According to the invention, it is intended for the beating mechanism (18) to comprise a drive shaft (30) that extends along a drive axis (A) and a wobble ring (28) for transforming a rotational movement of the drive shaft (30) into a translational movement, and the first beater (20.1) and the second beater (20.2) to be driven by the wobble ring (28).

In some examples, a material may be subject to shot peening of a relatively long duration to improve cavitation erosion resistance of the material. For example, the material surface may be shot peened to cause grain reduction and an increase in hardness to a depth of 60 m or more, while the surface remains relatively smooth. As one example, the method may include treating a surface of austenitic stainless steel by impacting the surface with shot media for a treatment duration of 15 to 40 minutes at a shot peening intensity corresponding to an Almen strip type A intensity of 5A to 10A.

A shock strut for a landing gear assembly that includes a hollow cylinder having a first bearing surface and a piston having a second bearing surface. The piston is configured to move within the hollow cylinder such that the second bearing surface slides relative to the first bearing surface. One of the first and second bearing surfaces includes a non-metallic material and the other of the first and second bearing surfaces includes cold worked titanium.

Method and apparatus are provided for processing and changing the physical characteristics of a metal workpiece into a final metal component. Predetermined processing parameters are established for achieving a final metal component. The metal workpiece is positioned securely on a support during the changing of the physical characteristics. Impacts are applied to a surface of the workpiece multiple times for achieving the final metal component while controlling the impacting with the predetermined processing parameters. A sensor is provided for continuously sensing the currently existing physical conditions of the workpiece during impacting. The predetermined processing parameters are changed into adjusted processing parameters and the impacts are changed in reaction to the currently existing physical conditions of the workpiece from the sensing and processing of the workpiece until the final metal component has been achieved.

A method of operation is provided during which a tool is arranged with a surface of a component. The tool includes a roller contacting the surface. A rolling operation is performed on the surface using the roller. A vibration operation is performed on the surface through the roller concurrently with the performing of the rolling operation.

A method and a device for induced formation of solid lubricant comprises providing (S10) of an article (10) to be processed. The article is exposed (S20) to a process fluid (34) comprising a solvent, impact media (20) and additives of solid-lubricant precursor substances. The solvent is a low-volatile high-flash solvent. The impact media are non-abrasive hard particles. The additives of solid-lubricant precursor substances are surface-reactive compounds serving as carriers of at least one of S, P, B and of at least one refractory metal. A velocity difference between surfaces (12) of the article and the impact media is created (S30). This causes impacts between the impact media and the article. Solid lubricant substances are formed (S40) on the surfaces by chemical reactions. The chemical reactions comprise the solid-lubricant precursor substances and are induced by the energy of the impacts. The chemical reactions take place at the surfaces of the article.