With the Titan XQ 400 AC puls, Germany’s largest manufacturer of welding machines, EWM, is revolutionising MIG welding of aluminium. The new acArc puls XQ alternating current welding process makes both manual and automated welding a joy, even when it comes to extremely thin sheets. Alongside the new MIG-AC welding process “acArc puls XQ”, all the established and optimised EWM DC welding processes, such as the forceArc puls XQ, rootArc XQ, or coldArc XQ, are, of course, included in the machine at no additional cost. The water-cooled Titan XQ 400 AC puls is specialised for aluminium welding. Even the thinnest sheets can be easily and safely joined together – without the molten metal falling through and with reduced distortion. In the new welding process “acArc puls XQ” the welding current alternates during the process sequence between positive and negative polarity. This makes the arc easy to control, even when it comes to AIMg alloys.