Why would someone need an AC/DC TIG welder?
Even if you're relatively new to welding, you likely understand that AC and DC welding involve using electrical currents to create an electric arc between an electrode and the metal to be fused. This process utilizes a power supply to generate the arc, employing either alternating current (AC) or direct current (DC). The choice of power source (AC or DC) determines the polarity of the electrical current passing through the electrode, influencing the quality and strength of the weld. Referred to as 'straight' or 'reverse,' the two types of current flow are sometimes labeled as 'electrode negative' and 'electrode positive.' DC polarity remains constant, while AC polarity alternates, flowing in one direction for half the time and in the reverse direction for the other half. Why would someone need an AC/DC TIG welder? While many welders often associate TIG welding solely with thin metals, the reality is that TIG welding has diverse applications ...