A blasting apparatus includes: a storage container including a storage chamber; a volumetric feeder; and a nozzle configured to project, together with compressed air, an abrasive supplied from the volumetric feeder, wherein: the volumetric feeder includes: a casing configured to define a space on an inside, and including an introduction port causing the space and the storage chamber to communicate with each other and a supply port opened toward a lower side in a position separated from the introduction port in a horizontal direction; and a screw including a rotational shaft housed in the casing and extending along the horizontal direction, the screw configured to carry the abrasive in the space toward the supply port from the introduction port by rotating about the rotational shaft; wherein the screw is housed in the casing in such a way as not to overlap the supply port in a vertical direction.

A wet media blasting system with a water injection system that provides more uniform distribution of the water, air and media components for achieving a more efficient mixture while minimizing the amount of water required to contain and minimize or eliminate airborne particulate matter such as dust produced during the blasting operation. The system supports dry blasting, wet blasting, and water wash down modes and air drying modes. When blasting, by more thoroughly mixing the water into the abrasive/water mix, the amount of water required is reduced. The abrasive feed is placed and shaped to optimize spray coverage and minimize abrasive flow into injection space thus mitigating water nozzle clogs. The water injectors are downstream of the air/abrasive mixing station.

A wet media blasting system with a water injection system that provides more uniform distribution of the water, air and media components for achieving a more efficient mixture while minimizing the amount of water required to contain and minimize or eliminate airborne particulate matter such as dust produced during the blasting operation. The system supports dry blasting, wet blasting, and water wash down modes and air drying modes. When blasting, by more thoroughly mixing the water into the abrasive/water mix, the amount of water required is reduced. The abrasive feed is placed and shaped to optimize spray coverage and minimize abrasive flow into injection space thus mitigating water nozzle clogs. The water injectors are downstream of the air/abrasive mixing station.

A sand source selecting structure for a sandblasting gun has a main body; a channel provided in the main body, for passing pressurized gas; at least two sub-channels provided in the main body respectively connected to the channel; a sandbox mounted on the main body connected to the channel through the first sub-channel; a first control valve installed in the first sub-channel; and a second control valve installed in the second sub-channel. Therefore, the combination of the first control valve with the second valve provides a selecting structure, which can offer different sand supply sources.

A sand source selecting structure for a sandblasting gun has a main body; a channel provided in the main body, for passing pressurized gas; at least two sub-channels provided in the main body respectively connected to the channel; a sandbox mounted on the main body connected to the channel through the first sub-channel; a first control valve installed in the first sub-channel; and a second control valve installed in the second sub-channel. Therefore, the combination of the first control valve with the second valve provides a selecting structure, which can offer different sand supply sources.

Dual sided shot peening system includes pressurized air supply in communication with independently controllable first and second air pressure regulators in communication with first and second shot supplies and independently controlled first and second shot flow control valves disposed between first and second nozzles and the shot supplies. Computer may be in control of regulators and valves. Nozzle supports may fixedly or movably support nozzles during shot peening. The system may be used for simultaneously shot peening first and second sides of a portion of a workpiece such as airfoils of a BLISK. First and second streams from first and second nozzles may have different properties and may be varied during shot peening.

An apparatus capable of efficiently performing a metal surface processing. The abrasive peening apparatus includes a processing tank storing abrasive particles and peening liquid, and including a bottom portion in which a workpiece is immersed in the peening liquid; a dispensing chamber having a plurality of recesses on an upper surface, and disposed in the bottom portion to dispense the peening liquid; a stirring nozzle disposed at a center of the recess directing vertically upward and connected to the dispensing chamber to eject the peening liquid; a peening nozzle immersed inside the processing tank to eject the peening liquid toward the workpiece; and a moving device moving the peening nozzle relative to the workpiece.

An apparatus and method for treating a surface with a jet utilizing a multiplicity of particles, using a mixing chamber for mixing a stream of propellant gas with the multiplicity of particles, a particle generator, which is designed to generate the multiplicity of particles and introduce them into the mixing chamber in a solid state, the particle generator having at least one screen plate, and it being possible for the multiplicity of particles to be formed in a solid state by pressing a solid starting material through the screen plate, a propellant gas line with a propellant gas nozzle for introducing the propellant gas into the mixing chamber, and an outlet from the mixing chamber for the stream of propellant gas.

A translatable, ultra-high pressure liquid jet system includes a translatable frame configured to maintain mechanical contact with a rail. The liquid jet system includes a liquid jet processing head affixed to the frame and configured to maintain a distance from the rail and provide a liquid jet that contacts the rail. The liquid jet system also includes an ultra-high pressure liquid pump in fluid communication with the liquid jet processing head. The ultra-high pressure liquid pump is configured to supply pressurized liquid to the liquid jet processing head.

A waterjet system is provided, including a pump configured to pump fluid, an electric motor configured to drive the pump, a hopper configured to store abrasive, and a mixing chamber configured to mix abrasive from the hopper and the fluid from the pump to produce a slurry. A cutting bed is configured to receive a workpiece to be cut. A cutting head is configured to expel the slurry through the outlet nozzle as a high-velocity jet into the cutting bed.