What is the optimum torch travel angle for GTAW welding?

The optimum torch travel angle for GTAW (Gas Tungsten Arc Welding) welding is generally recommended to be less than 15 degrees from the vertical. This angle allows the welder to maintain better arc stability and control the heat input more effectively. A more vertical torch position enhances the ability to focus the heat onto the weld joint, resulting in a more uniform and controlled bead while minimizing the risk of overheating the base material.

Welding at an angle greater than this can lead to various issues, such as an unstable arc, inadequate penetration, and difficulties in controlling the filler metal transfer. Therefore, keeping the travel angle less than 15 degrees supports better welding performance and results, ensuring a high-quality weld.