What two components of the TIG torch must be changed when altering the size of the tungsten?

When altering the size of the tungsten in a TIG torch, it is necessary to change the collet and collet holder. The collet is the component that secures the tungsten in place, and it needs to match the diameter of the tungsten being used for effective grip and stability. Different sizes of tungsten require appropriate collet sizes to ensure that the tungsten is held securely and aligned correctly for optimal arc stability.

The collet holder, which houses the collet and allows for the attachment of the tungsten to the torch body, also needs to be compatible with the chosen collet size. This ensures that the overall setup maintains proper function and allows for consistent welding performance. Not adjusting these components can lead to improper tungsten positioning, negatively affecting the quality of the weld.

Understanding the importance of these components helps ensure that the TIG welding process is executed accurately and efficiently, reflecting the precise nature of the work done in sheet metal applications.