Basic TIG Welding 101 With Inverter Machines Photo Gallery
Pre-flow is recommended before you start the TIG arc. Pre-flow is argon gas flowing onto the tungsten rod and the weld material before you start welding. You can start pre-flow by taping the foot pedal to get the argon gas to create a shield around the area of weld and tungsten. This will help remove the considerations in the torch line and shield against porosity in the weld.