Hypertherm, Inc.

Eric Streit

Yu Zhang

Jesse A Roberts

Jeff Ortakales

Zheng Duan

Stephen Theodore Eickhoff

Junsong Mao

Justin Gullotta

Richard Pavlik

Dennis Kulakowski

Brandon Mason

A consumable cartridge for a plasma arc torch is provided. The consumable cartridge includes an outer component defining a substantially hollow body, an inner component disposed substantially within the hollow body of the outer component, and a hollow region between the rear portion of the inner component and the outer component. The inner component includes a forward portion configured to axially secure and rotatatably engage the outer component to the inner component and a rear portion substantially suspended within the hollow body of the outer component. The rear portion is axially secured and rotatably engaged with the outer component via the forward portion. The hollow region is configured to receive a torch head to enable mating between the rear portion of the inner component and a cathode of the torch head.

Cost effective cartridge for a plasma arc torch

Cartridge for a plasma cutting torch

In some aspects, methods for controlling a pneumatic system in a plasma arc processing system can include: receiving, by a computing device, a command to begin a plasma processing operation; generating a valve command signal for a valve that includes an operational drive voltage of at least about 125% of a continuous duty cycle coil voltage rating of the valve to open the valve; and once open, adjusting the valve command signal to facilitate a steady state operation to: monitor a steady state operational duty cycle of the valve, the steady state operational duty cycle being determined by comparing the continuous duty cycle coil voltage rating of the valve to an actual operational drive voltage supplied to the valve, and control the operational drive voltage supplied to the valve to maintain a steady state operational duty cycle of the valve at less than about 60% during steady state operation.

Controlling gas flows to plasma arc torches and related systems and methods

In some aspects, a consumable for plasma arc torch that generates a predetermined plenum pressure from a substantially constant preset gas supply pressure from a plasma arc torch power supply, where the substantially constant preset gas supply being used to support plasma generation for a selection of multiple consumable components that each generate a different plasma plenum pressure for carrying out different processes, can include a proximal portion shaped to connect to the plasma arc torch and define a plasma gas inlet region; a distal portion shaped to define a gas outlet; and a pressure-matching stage comprising a pressure wall defining at least one flow path between the gas inlet region and the gas outlet configured to establish sufficient fixed pressure drop of a flow of gas flowing through the pressure-matching stage to reduce a pressure of the flow of gas to the predetermined plenum pressure.

Supplying pressurized gas to plasma arc torch consumables and related systems and methods

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Lebanon, NH, United States of America

Eric Streit