Plasma welding
Plasma welding
The plasma process is basically very similar to the TIG process but has a number of critical advantages. These make it an interesting alternative to laser welding where tough quality demands have to be met, especially on sheets and other components with a sheet thickness of up to 8 mm (0.31 in.).
In plasma welding, the arc is constricted by a cooled gas nozzle. The powerfully bunched arc that results does away with the need for time-consuming weld preparation work such as V- or U-type joint preparation. This saves as much as 30 % of the fi ller metal. In turn, the higher welding speed – around 20 % faster in soft-plasma welding, for example – saves time and costs at the same time as ensuring deeper penetration. Also, being enveloped in plasma gas, the tungsten electrode has a much longer service life.
Microplasma
Base metals
chrome-nickel materials, coated and uncoated steels, titanium and all nickel-based materials
Fields of use
automotive vendor industry, for pipeline and tank construction, in mechanical engineering and structural steelwork, for rail vehicles and rolling stock, and in shipbuilding
Soft-plasma / plasma brazing
Digital TIG welding systems of the mid-range 220 to 300 A power class can be combined with the PlasmaModule 10 and the Robacta PTW 1500 plasma welding torch whenever needed. The great thing about the soft-plasma weld process is its up to 20 % higher welding speeds, meaning you save time and money. Especially on applications with sheet thicknesses of up to 3 mm (0.12") in a power range between 3 and 300 A. Either manual or mechanized utilization is possible.
Base metals
chrome-nickel materials, coated and uncoated steels, titanium and all nickel-based materials.
Fields of use
automotive vendor industry, for pipeline and tank construction, in mechanical engineering and structural steelwork, for rail vehicles and rolling stock, and in shipbuilding
Plasma-keyhole
When tough quality requirements have to be met on sheets and other components of up to 8 mm (0.31") in thickness: this is when the plasma keyhole process comes into its own. A cooled gas nozzle constricts the arc, delivering a powerfully bunched arc that eliminates the need for labor-intensive weld preparation work such as V- or U-type joint preparation. This saves as much as 30 % of the filler metal. Digital TIG power sources in the 400 to 500 A power range can simply be combined with the PlasmaModule 10 and the plasma welding torch Robacta PTW 3500 to create a plasma keyhole welding system for mechanized applications in the power range between 3 and 500 A.
Base metals
chrome-nickel materials, coated and uncoated steels, titanium and all nickel-based materials
Fields of use
automotive vendor industry, for pipeline and tank construction, in mechanical engineering and structural steelwork, for rail vehicles and rolling stock, and in shipbuilding
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