The invention features methods and apparatuses for altering a cutting operation during operation of the pressurized liquid jet cutting system. A pressurized liquid jet cutting system includes a pressurized fluid jet cutting head having a plurality of components. The cutting head further includes a sensor configured to sense an operating condition. The sensor transmits a value of the operating condition to a computing device, which alters a subsequent cutting operation. Further, the fluid jet cutting head is configured to work with a data storage mechanism and a reader, such that the data storage mechanism in contact with a body of the fluid jet cutting head is configured to communicate information to a reader of the pressurized liquid jet cutting system. The information is usable to determine a condition of replacement (e.g., a remaining usable life) of the replaceable component, change an operating pressure, change a cutting speed, or alter another operating parameter of the pressurized liquid jet cutting system.

A focusing tube is configured to focus a high-pressure liquid jet containing abrasive particles. The focusing tube has a focusing duct portion and an exit opening for the free discharge of the liquid jet from the focusing duct portion. A center point of the discharge opening coincides with the longitudinal axis of the focusing duct portion. The focusing duct portion is delimited by a liquid-impermeable channel wall, extends from the discharge opening at a focusing taper angle and is tapered toward the discharge opening. The focusing taper angle lies in a range from 0.05° to 1°. This allows the service life of the focusing tube to be increased in a way that is simple in terms of design.

A focusing tube is configured to focus a high-pressure liquid jet containing abrasive particles. The focusing tube has a focusing duct portion and an exit opening for the free discharge of the liquid jet from the focusing duct portion. A center point of the discharge opening coincides with the longitudinal axis of the focusing duct portion. The focusing duct portion is delimited by a liquid-impermeable channel wall, extends from the discharge opening at a focusing taper angle and is tapered toward the discharge opening. The focusing taper angle lies in a range from 0.05° to 1°. This allows the service life of the focusing tube to be increased in a way that is simple in terms of design.

A wet media blasting system with a water injection system that provides more uniform distribution of the water, air and media components for achieving better application of the 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. 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 abrasive flow is shaped as it is released from the metering valve in order to tighten the abrasive flow before it enters into the blast air stream. The shaped and tightened abrasive flow is maintained at the lower portion of the blast air stream. This positions the abrasive flow in optimum placement for spray wetting the abrasive as it flows into and through the nozzle. This also mitigates nozzle clogging by directing most of the abrasive flow away from the water spray nozzle port.

A wet media blasting system with a water injection system that provides more uniform distribution of the water, air and media components for achieving better application of the 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. 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 abrasive flow is shaped as it is released from the metering valve in order to tighten the abrasive flow before it enters into the blast air stream. The shaped and tightened abrasive flow is maintained at the lower portion of the blast air stream. This positions the abrasive flow in optimum placement for spray wetting the abrasive as it flows into and through the nozzle. This also mitigates nozzle clogging by directing most of the abrasive flow away from the water spray nozzle port.

The present invention relates to a process and apparatus to inspect and clean orifices found on extrusion dies, spinnerets and other objects having small holes. Orifices are microscope imaged and digitally measured, and if required the invention performs non-contact orifice cleaning using carbon dioxide dry ice particles.

The present invention relates to a process and apparatus to inspect and clean orifices found on extrusion dies, spinnerets and other objects having small holes. Orifices are microscope imaged and digitally measured, and if required the invention performs non-contact orifice cleaning using carbon dioxide dry ice particles.

The invention provides a machining system (201) comprising: a machining apparatus (202), notably an abrasive waterjet cutting system (203), said machining apparatus being adapted for machining a workpiece (204); a monitoring device (228) adapted for monitoring machining conditions of the machining apparatus (202) and/or of the workpiece, the monitoring device comprising a plurality of sensors, said plurality of sensors comprising a first sensor (237) at a first location and a second sensor (239) at a second location which is distant from the first location. The plurality of sensors comprises a fourth sensor (243) which is formed by an array of microphones (254) arranged on a grid. The plurality of sensors comprises accelerometers, strain gauges and microphones. The invention also provides a monitoring method of a machining system (201) wherein a specific benchmark signature is chosen from a library.

The invention provides a machining system (201) comprising: a machining apparatus (202), notably an abrasive waterjet cutting system (203), said machining apparatus being adapted for machining a workpiece (204); a monitoring device (228) adapted for monitoring machining conditions of the machining apparatus (202) and/or of the workpiece, the monitoring device comprising a plurality of sensors, said plurality of sensors comprising a first sensor (237) at a first location and a second sensor (239) at a second location which is distant from the first location. The plurality of sensors comprises a fourth sensor (243) which is formed by an array of microphones (254) arranged on a grid. The plurality of sensors comprises accelerometers, strain gauges and microphones. The invention also provides a monitoring method of a machining system (201) wherein a specific benchmark signature is chosen from a library.

The present disclosure relates to a non-contact type pile cutting apparatus using a waterjet, particularly to a pile cutting apparatus entering the inside for cutting a pile including: a body that has a pipe form and is put into an inside of the pile; a gripper unit that is provided at an outer side of the body and fixes the body to the pile when the pile cutting apparatus has reached a cutting position of the pile; a waterjet unit that is provided at one side of the body and fixed by the gripper unit, and then sprays an abrasive mixture in which an abrasive and a fluid are mixed, toward the pile in a high pressure; a rotation unit that rotates the waterjet unit around a central axis of the body; a feed line that feeds the abrasive mixture in which the fluid and the abrasive of a set ratio are mixed, to the waterjet unit from the outside; a feed unit that controls a feed pressure of the abrasive mixture fed through the feed line; and a nozzle driving unit that controls a position of the waterjet unit.