What is the proper position for the filler rod during welding?

The proper position for the filler rod during Gas Tungsten Arc Welding (GTAW) is typically at a 15-degree angle or less. This angle is advantageous because it allows for better control of the filler material as it is added to the weld pool. A lower angle aids in the precise placement of the filler rod into the molten weld pool, ensuring that the filler metal is introduced smoothly without disrupting the integrity of the base metal or the pool itself.

Maintaining a small angle helps in achieving better fusion between the filler rod and the base materials, enhancing the overall quality of the weld. It also allows for effective heat transfer, ensuring the filler rod melts adequately to blend seamlessly into the joint being welded.

In contrast, positions such as the 30-degree or 45-degree angles can make it challenging to control the filler material and might lead to inconsistent results or poor weld quality. A horizontal position may not provide the same efficiency in joint filling or might limit the welder's ability to manipulate the rod effectively for uniform distribution of heat and material. This highlights the importance of the recommended angle for optimal welding results.