Multi-jet abrasive head for cleaning/removing material surfaces and splitting/cutting materials by a liquid beam enriched with solid abrasive particles with a uniform velocity and density profile allowing the cutting power to be increased with more efficient cutting beam usage.

Multi-jet abrasive head for cleaning/removing material surfaces and splitting/cutting materials by a liquid beam enriched with solid abrasive particles with a uniform velocity and density profile allowing the cutting power to be increased with more efficient cutting beam usage.

A wet abrasive blasting system includes a vessel having multiple outlets for dispensing slurry. A first sprayer of the system is operatively associated with a first blast control switch, and a second sprayer is operatively associated with an n-th blast control switch. A first blast line fluidly connecting the first sprayer to the first outlet includes a first pinch valve, and an n-th blast line fluidly connecting the n-th sprayer to the n-th outlet includes an n-th pinch valve. A time delay module of the system transmits signals to close all system pinch valves upon receipt of signals indicative of an actuated state of more than one blast control switch and, after a predetermined time delay, transmits signals to open all system pinch valves associated with their respective actuated blast control switches.

A wet abrasive blasting system includes a vessel having multiple outlets for dispensing slurry. A first sprayer of the system is operatively associated with a first blast control switch, and a second sprayer is operatively associated with an n-th blast control switch. A first blast line fluidly connecting the first sprayer to the first outlet includes a first pinch valve, and an n-th blast line fluidly connecting the n-th sprayer to the n-th outlet includes an n-th pinch valve. A time delay module of the system transmits signals to close all system pinch valves upon receipt of signals indicative of an actuated state of more than one blast control switch and, after a predetermined time delay, transmits signals to open all system pinch valves associated with their respective actuated blast control switches.

A method of smoothing an inner surface of a tubular wall of a workpiece is disclosed, including immersing the workpiece in a mixture of a liquid and an abrasive and inserting a cavitation peening nozzle into a cavity of the workpiece. The method further includes injecting a cavitating jet from the cavitation peening nozzle into the cavity.

A method of smoothing an inner surface of a tubular wall of a workpiece is disclosed, including immersing the workpiece in a mixture of a liquid and an abrasive and inserting a cavitation peening nozzle into a cavity of the workpiece. The method further includes injecting a cavitating jet from the cavitation peening nozzle into the cavity.

Aspects of the present application include a configurable blast gun plate assembly, which allows the workpiece processing apparatus to accommodate workpieces of different shapes and sizes. In an embodiment, a blast gun assembly for processing workpieces includes a platform, a blast gun support structure disposed on the platform, a blasting gun held onto the platform via the collar and the blast gun support structure. The platform is substantially horizontal, and the blast gun support structure is configured to releasably hold the collar in a predetermined position.

Aspects of the present application include a configurable blast gun plate assembly, which allows the workpiece processing apparatus to accommodate workpieces of different shapes and sizes. In an embodiment, a blast gun assembly for processing workpieces includes a platform, a blast gun support structure disposed on the platform, a blasting gun held onto the platform via the collar and the blast gun support structure. The platform is substantially horizontal, and the blast gun support structure is configured to releasably hold the collar in a predetermined position.

Provided is a wet blasting treatment device including a first nozzle unit that discharges, toward a target treatment region of a workpiece, slurry in which a first liquid and abrasive grains are mixed, a second nozzle unit that discharges a second liquid toward an untreated region adjacent to the target treatment region such that a liquid film is formed in the target treatment region of the workpiece, and a control unit that controls a discharge amount of the second liquid discharged by the second nozzle unit such that the liquid film has a predetermined thickness.

According to an aspect of the present invention there is provided a tip for fitting to a nozzle of an air abrasion dental tool. The tip comprises a tip body having a central bore that extends through the length of the tip body from an inlet end to an outlet end. The inlet end of the tip body is configured to receive and form an interference fit with the nozzle of the dental tool. The outlet end of the central bore is provided with at least one flexible prong that extends outwardly from the outlet end in a direction that is substantially parallel to longitudinal axis of the central bore.