Mar 12, 2025 · TIG Root Pass Techniques When it comes to welding, particularly TIG welding, the term “root pass” is frequently used, especially for thicker materials. The root pass sets the …

Amps needed depends on how heavy a root pass... usually 10 amps more is enough. The goal of the hot pass is to adequately fuse to the root pass without disturbing the back side.

In this article, we'll explain TIG root pass techniques and challenges and present tips for successful operation.

The ABSOLUTE BEST Way to Do Root Pass with TIG Welding. In this video, I will guide you through the intricate process of Tig welding the root pass on carbon steel pipe.

Sep 30, 2022 · Welding thick metal, commonly pipe welding, will require a multi-pass weld. First and the most important is the root pass, which gives the base for all subsequent filler passes. …

Apr 24, 2017 · Root passes use weld filler material to close the root space between the weld faces, and are particularly useful when only one side of the weld is accessible. Follow tips …

Jul 11, 2025 · I’ll walk you through why a strong root pass matters, how it affects the overall weld quality, and some tips and techniques for making your root pass as solid as possible.

Aug 4, 2025 · The root pass represents the first—and arguably most critical—weld bead in any multi-pass joint, designed to achieve complete penetration through the root. When executed …

Nov 30, 2023 · For this video, I am welding a root pass and hot pass in a 4 inch schedule 40 pipe in the horizontal (2G) position. This pipe weld would often be done by walking the cup but I …

Jul 27, 2009 · 100-amps for root, just break the filler down, don’t weave the tungsten past the width of the filler, and move fast! Do not increase the amps more than 10 to 15-amps for the …