What should be done if tungsten splitting occurs during GTAW?

When tungsten splitting occurs during Gas Tungsten Arc Welding (GTAW), it is typically a sign that the welding current may be too high for the type of tungsten electrode being used or for the specific application. Decreasing the welding current can help to resolve this issue.

When the current is too high, it can cause excessive heat at the tungsten electrode, leading to undesirable effects such as splitting or melting. By lowering the current, you reduce the heat concentration on the tungsten, allowing it to maintain its integrity and prolong its life. This change also helps to produce a more stable arc, improving the overall weld quality.

In addition to adjusting the current, it's essential to ensure that the process parameters are well matched to the materials and the thickness being welded. This tailored approach can aid in preventing further occurrences of tungsten splitting and achieving better results in your welding projects.