Walking the cup in TIG welding is a technique where the torch's nozzle, or "cup," is moved in a controlled, circular motion along the weld seam. This method ensures even heat distribution and optimal fusion, resulting in a smooth, uniform weld, especially effective for pipe welding. It's a skilled approach for achieving high-quality results in critical applications. I will be hosting this video tutorial showing beginners and intermediates how to place a root pass and schedule 40 carbon steel.