Which factor can negatively impact bead appearance in GTAW?

Improper torch angle can significantly affect the bead appearance in Gas Tungsten Arc Welding. The angle at which the welding torch is held influences the shape and quality of the weld bead. If the torch is angled too steeply or too shallowly, it can lead to a variety of issues, such as an uneven bead width, excessive spatter, or insufficient penetration. These factors can result in a bead that looks inconsistent or is prone to defects, ultimately impacting the structural integrity of the weld.

Maintaining the correct torch angle is crucial for ensuring that the heat is evenly distributed across the weld joint, which contributes to a smooth and aesthetically pleasing bead. A proper angle allows the welder to control the heat input and the way filler material is deposited, leading to a more uniform bead that meets visual and structural standards. Therefore, understanding and utilizing the right torch angle is essential for achieving high-quality results in GTAW.