What is the consequence of improper torch angle in GTAW?

Improper torch angle in Gas Tungsten Arc Welding (GTAW) can significantly impact the quality of the weld. A torch that is not angled correctly can lead to weak welds due to insufficient penetration, where the weld does not adequately fuse with the base materials. This may result in a lack of strength and durability in the final joint. Additionally, an incorrect torch angle can affect the appearance of the weld bead. When the angle is off, the heat distribution across the weld pool may be uneven, resulting in defects, inconsistent bead size, and poor alignment.

Proper torch angle is critical for maintaining the right distance from the workpiece, allowing both the welder to properly view the weld pool and ensuring optimal heat settings for melting the base materials and filler. Therefore, option B highlights the consequences of an improper torch angle, focusing on the inherent welding defects it can cause, such as weak welds and poor bead appearance, which are crucial for the strength and aesthetic of the finished product.