An amorphous alloy particle is an amorphous alloy particle formed of an iron-based alloy, and the particle contains a grain boundary layer.

An apparatus for forming a metal workpiece having a first surface is described herein. The apparatus includes a trough containing a liquid. The apparatus also includes a support for positioning the metal workpiece in an impact-receiving position. In the impact-receiving position, the first surface is submerged in the liquid. The apparatus includes a driven member for applying multiple impacts to the first surface of the metal workpiece while the metal workpiece is in the impact-receiving position.

An apparatus for forming a metal workpiece having a first surface is described herein. The apparatus includes a trough containing a liquid. The apparatus also includes a support for positioning the metal workpiece in an impact-receiving position. In the impact-receiving position, the first surface is submerged in the liquid. The apparatus includes a driven member for applying multiple impacts to the first surface of the metal workpiece while the metal workpiece is in the impact-receiving position.

An article and a method of manufacturing the article is disclosed. The method includes providing the article including a substrate and a coating at least partially disposed on the substrate. The coating includes an outer surface. The coating further includes platinum and chromium. The method further includes applying cold work to the outer surface of the coating to produce a cold-worked layer extending from the outer surface of the coating to a cold work depth. The cold-worked layer includes approximately 45% cold work. The cold work depth is between about 30 microns to about 150 microns from the outer surface of the coating.

The invention relates to a method for the impact treatment of transition radii (8) of a crankshaft (4), in particular transition radii (8) between connecting rod bearing journals (5) and crank webs (7) and/or transition radii (8) between main bearing journals (6) and the crank webs (7) of the crankshaft (4). In order to apply an impact force (FS) to at least one of the transition radii (8) along the respective transition radius (8) circulating about the crankshaft (4) in an annular manner, a heavily loaded region (BMAX), a lightly loaded region (BMIN), and intermediate regions (BZW) lying therebetween are defined, and an impact treatment is then carried out such that the impact force (FS) introduced into the intermediate regions (BZW) is increased in the direction of the heavily loaded region (BMAX).

With the method according to the invention, mould parts for casting moulds for light metal casting can be treated such that the danger of crack formation in the region of the surface sections of the mould part coming into contact with the light metal melt during casting is reduced to a minimum. This is achieved in that by means of nitriding treatment on the mould part a nitride-hardened edge layer adjoining its free surface is generated which is harder than the inner core region of the mould part and comprises a diffusion layer adjoining the core region and a compound layer located on the diffusion layer and adjoining the free surface of the mould part and in that at least one section of the surface of the mould part is mechanically processed by machine hammer peening, in the case of which a hammer tool, which, at a certain impact frequency, carries out an impact movement along a movement axis which is aligned in relation to the free surface at a certain acute angle, is guided continuously over the free surface of the mould part following a track determined in a preceding design step such that the compound layer is removed by the impacting stress in the impact region of the hammer tool.

The present invention relates to an additive manufacturing system and its methods. The system includes a material conveyor, an energy source, and a micro-forging device. The material conveyor is configured to convey material. The energy source is configured to direct an energy beam toward the material, the energy beam fuses at least a portion of the material to form a solidified portion. The micro-forging device is movable along with the material conveyor for forging the solidified portion, wherein the micro-forging device comprises a first forging hammer and a second forging hammer, the first forging hammer is configured to impact the solidified portion to generate a first deformation, and the second forging hammer is configured to impact the solidified portion to generate a second deformation greater than the first deformation.

The present invention discloses a portable multi-azimuth ultrasonic-assisted vibration rolling device and an application method thereof. The vibration rolling device includes an ultrasonic rolling unit, a hydraulic power unit, a pneumatic cooling unit, a main body frame and an indexing device; an amplitude transformer assembly at the ultrasonic rolling unit comes into rolling contact with the surface of a tooth space of a gear workpiece, the hydraulic power unit is articulated with the main body frame, and the hydraulic power unit is articulated with the horn assembly, the indexing device is provided at the main body frame, and the gear workpiece is mounted at the indexing device. The present invention has the advantages that the device is flexible and portable, enables a transducer to be cooled continuously, and facilitates fixation of a rolling steel ball and adjustment of a station of the gear workpiece.

The present invention discloses a portable multi-azimuth ultrasonic-assisted vibration rolling device and an application method thereof. The vibration rolling device includes an ultrasonic rolling unit, a hydraulic power unit, a pneumatic cooling unit, a main body frame and an indexing device; an amplitude transformer assembly at the ultrasonic rolling unit comes into rolling contact with the surface of a tooth space of a gear workpiece, the hydraulic power unit is articulated with the main body frame, and the hydraulic power unit is articulated with the horn assembly, the indexing device is provided at the main body frame, and the gear workpiece is mounted at the indexing device. The present invention has the advantages that the device is flexible and portable, enables a transducer to be cooled continuously, and facilitates fixation of a rolling steel ball and adjustment of a station of the gear workpiece.

The present invention discloses a roll forming device for micro-casting and rolling additive manufacture for large special-shaped pipes, comprises a supporting assembly, a sliding assembly, and a roller system assembly. The sliding assembly includes a guide rail, hydraulic cylinders, hydraulic push rods and a guide rail sliding frame. Two ends of the guide rail are respectively fixedly connected with the centers of two ends of the frame plate in a width direction, the lower surface of the sliding plate of the guide raid sliding frame is slidably connected with the guide rail, housings of the hydraulic cylinders are respectively fixedly connected to the centers at both ends of the frame plate in the width direction. The invention adopts the structures of the guide rail, the hydraulic cylinder and the steering hinge rod to expand the working range of the device and the working types of workable parts.