What is the name of the cone-shaped sleeve that holds the electrode in the welding torch?

The cone-shaped sleeve that holds the electrode in the welding torch is known as the collet. It is specifically designed to securely grip the electrode while allowing for adjustments and flexibility in positioning during the welding process. The collet ensures that the electrode remains centered and stable, which is crucial for producing a precise and effective arc during gas tungsten arc welding (GTAW).

The collet works in conjunction with the torch's design to provide optimal electrical conductivity and cooling during operation. Proper maintenance and selection of the collet are vital for achieving high-quality welds, as any improper fit might lead to arc instability or interference in the welding process. This component is essential for the efficiency and reliability of GTAW, ensuring that the electrode can perform its role effectively in the weld.