TIG welders can raise a heartfelt cheer! Specially for them, Fronius has developed a series of machines that make their every wish come true: MagicWave 1700/2200 for DC and AC, and TransTig 2200 (for DC only).

These power sources are up-to-the-minute characters, in every way, and eager to please: Ever-so discreet, with a super-quiet yet highly stable arc. Extremely straightforward to use – in fact, almost self-explanatory. Single-phase, so they can be plugged into any wall power outlet. Light and tough at the same time, and completely digitised – which you won’t find on any other TIG machine.

What is more, every single one of these machines is a member of a complete, totally co-ordinated welding system, all of whose components perfectly complement one another. All in all, the upshot is the sort of welding results which up to now you could only dream of.

One of the great things about the MagicWave and Trans-Tig units is that they’re completely at home out in the field. Weighing in at a mere 15 kg, these power sources are among the lightest in the world, so you can take one with you just about anywhere. Also, their sturdy design makes them more than a match for the tough conditions encountered in the field, and because they are singlephase, they can simply be plugged into any ordinary 230 V socket (wall outlet). And there aren’t too many places where you won’t find one of those!

In terms of materials, these machines are very suitable for aluminium and its alloys, but also for low and highalloy steels and non-ferrous metals, of course. Thanks to their great versatility, the MagicWave 1700/2200 and TransTig 2200 are used right across the entire spectrum of industry – from the construction of chemical plant, tanks and containers to mechanical and plant engineering and pipeline construction, and taking in all site-erection, structural metalworking, maintenance and repair firms. Delivering just as perfect results when used for robot welding as in manual welding.

Perfection every step of the way

The Fronius welding systems have been thought out right down to the last detail. For every possible application, the goal was nothing less than perfection itself. The result is a system that makes every single operating step as easy and pleasant as possible. From ignition all the way through to the end of the weld, from tack-welding to shaping the electrode cap. But let’s take it all a step at a time …

… starting with the ignition, which plays a key rôle in TIG welding. On each of the three machines, ignition is possible either with or without touchdown. In the noncontact mode, the arc starts immediately with a highvoltage impulse, ensuring perfect ignition right from the first push of the button – even with extra-long hosepacks. The touchdown ignition is especially valuable in sensitive areas of application. And the important thing here is to make sure that there are no tungsten inclusions. The digital process control takes good care of this, perfectly controlling the entire sequence.

Active Wave – for peace and quiet

From now on, TIG AC welding will be a much quieter business – with a much quieter arc. No dream, this, but hard fact. For which we have Active Wave to thank: the integrated digital signal processor always computes – in real time – the waveform that will permit the highest possible arc stability with the lowest possible noiseemissions levels. Measurement of these noise levels clearly shows that with Active Wave, even when the machine is delivering 220 A of power, the dbA value is still below 80 dbA. If you’re not a welder yourself, and want to know how important this development is, then just ask one!

Special program for aluminium

 Aluminium always needs special treatment. So Fronius have made sure that it gets it. For example, in TIG AC welding, aluminium is normally not welded with a pointed electrode tip, but with a shaped cap at the tip of the electrode. On fillet welds, this leads to inadequate root fusion. The MagicWave machines use a pointed electrode with a much smaller shaped cap, and perfect root fusion as a result.

The cap is shaped automatically, by the way, which means huge savings of time. All you need to do is clamp the pointed electrode into the electrode holder, pre-select the cap diameter (e.g. 1.6 mm), and the arc immediately forms the shape and size of cap that you want. Another interesting function enables you to make variable adjustments to the AC waveform, giving the welder reliable weld-pool control even at high amperages.

Simultaneous welding on both sides

When joining plates, you normally have to weld a root pass first. This then has to be ground and back-welded - a time-consuming procedure which you can speed up by welding from both sides simultaneously. In “both-sidessimultaneously” TIG-AC welding, both arcs have to be synchronised. And to help you do this, the MagicWave power sources have a “SyncMode” function which harmonises both the arcs.

Easy, easier, easiest

The machines come with an operating concept that is simply exemplary. The control panel is just about entirely self-explanatory, and correspondingly easy to use. Then there is the facility for simplifying the panels still further in practice, by activating only those functions and controls that you are actually going to need. This makes welding even more agreeable.

Complete system, even including a TIG torch

 Fronius is a system supplier. Each member of the system is designed to “fit in” optimally with all the others, in perfect harmony. It takes in everything from modularly designed power sources (available for both gas and water-cooled torches, incidentally), to remote-control units, cooling units, trolleys and a wide range of different robot interfaces, as well as complete welding-data documentation and visualisation.