200 Amp AC/DC Aluminium TIG Welder with Pulse, 220V IGBT Digital Inverter TIG/MMA Welding Machine with Foot Pedal, VRD Function for Carbon Steel, Stainless Steel and Aluminium. The Aluminium TIG welder can weld up to 1/4" aluminium and 3/8" mild steel and is capable of welding 7018, 6013, 6011, 6010.