Plasma torch

[5] However, these types of setups are rare as most common non-conductive materials do not require the precise cutting ability of a plasma torch.

In addition, the discharge generated by this particular plasma source configuration is characterized by a complex shape and fluid dynamics that requires a 3D description in order to be predicted, making performance unsteady.

The quality of plasma produced is a function of density (pressure), temperature and torch power (the greater the better).

[7] In a DC torch, the electric arc is formed between the electrodes (which can be made of copper, tungsten, graphite, silver etc.

Furthermore, the flow-rate of the carrier gas can be raised to promote a larger, more projecting plasma jet, provided that the arc current is sufficiently increased; and vice versa.

A plasma torch cutter
Cross-sectional representation of a non-transferred DC plasma torch. Showing the pointed cathode and annular anode. The inlets and outlets of the water-cooling system are labelled, note that the arc temperature can be up to 15 000°C. The plasma arc is drawn for illustration purposes only. Not to scale.