Plasma Arc Welding (PAW) was developed in the 1960s, and until recently was the only practical choice where deep penetration welds were required. While good quality welds can be achieved, the practical upper limit for full penetration PAW welding is 8mm to 10mm (5/16 to 13/32
PAW is characterised by an orifice to pinch the arc, accurate alignment with the electrode, frequent maintenance, high level of complexity, the need for both plasma and shield gases to form the jet and protect the orifice, very accurate determination and maintenance of flow rates.
As well as
By contrast, K-TIG can weld materials up to 16mm (5/8 inch) in thickness, and typically operates at twice the travel speed of PAW.
K-TIG is very simple to operate. The arc structure and keyhole develop spontaneously and are maintained automatically by the controller throughout the weld.
There is no plasma nozzle or orifice, no precise electrode alignment is required, only one welding gas is used,
Yes, and the switch is straightforward.
If you are currently using Plasma Arc Welding (PAW) you are almost certainly a model K-TIG customer.
You will probably be welding stainless steel, duplex or super duplex of between 3mm and 10mm (1/8 to 13/32 inch). You will have already invested in automation equipment to provide a consistent travel speed, typically a positioner, rotator, seamer or column & boom. Your application is probably pressure vessels, cryogenic vessels, tanks or you're a tube mill.
K-TIG has vast experience in these applications and can transition you to K-TIG very quickly and simply.
A fabricator who is currently using Plasma Arc Welding (PAW) will find upgrading to KTIG to be straightforward. The existing welding automation system can continue to be used. Setting up is typically as simple as swapping over to the K-TIG torch. If desired, the K-TIG controller can also