The regression analysis was used in  for the development of empirical models able to describe the effect of the process parameters on the cut quality in plasma arc cutting
of a 15 mm thick mild steel sheets.
(1964) Advances in plasma arc cutting
. Welding J., 12, 114-116.
The method also eliminated machining of hard edges, caused by metallurgical changes wrought by laser or plasma arc cutting
Plasma Arc Cutting
is a process where an open arc can be constricted by passing through a small nozzle, from the electrode to the workpiece.
Students in Welding II complete study in occupational orientation and safety, advanced shielded metal arc welding (SMAW), semi-automatic arc welding [gas metal arc welding and flux-cored arc welding (GMAW/FCAW), gas tungsten arc welding (GTAW), carbon arc cutting principles and practices (CAC-A), plasma arc cutting
(PAC), and employability skills.
Among the unconventional cutting processes, the Plasma Arc Cutting
process is a significant one.
Normally, a plasma arc cutting
system has a power supply, an arc starting circuit, and a torch.