What is one effect of incorrect travel speed in GTAW?

In Gas Tungsten Arc Welding (GTAW), the travel speed significantly impacts the overall quality and characteristics of the weld. When the travel speed is incorrect, one of the most direct effects is that the width of the weld can be adversely affected, leading to a weld that may become too wide or too narrow.

If the travel speed is too slow, the heat input is increased, which can lead to excessive melting of the base material. This results in a wider weld bead than intended. Conversely, if the travel speed is too fast, there may not be enough heat provided to achieve proper fusion, resulting in a weld that is too narrow and potentially lacks penetration.

Consistent control of travel speed is essential for producing welds that have predictable dimensions and characteristics. Therefore, being attentive to the travel speed is crucial for achieving the desired weld quality and integrity in GTAW processes.