TIG Welding Torch Operation
Arc Initiation: The welder initiates the arc by touching the tungsten electrode to the workpiece or using a high-frequency start.
Gas Flow: Shielding gas flows through the torch, protecting the weld area from atmospheric contamination.
Arc Maintenance: The welder maintains a small gap between the electrode and the workpiece to sustain the arc.
Heat Control: The welder adjusts the heat input using a foot pedal or torch-mounted amperage control.