Enclosed Head Orbital Welding
Closed-head orbital welding is a mechanized TIG welding process in a closed chamber where the electrode orbits around the stationary workpiece. It prevents contamination and produces a clean joint.
Physical-Chemical Mechanism of Action
The electrode orbits around the workpiece while current flows through the weld. This leads to continuous heating and melting of the metal at the contact surface. The closed chamber protects the process from foreign matter ingress.
Metallurgical Relevance & Welding Risks
This method prevents contamination, which is especially important for high-purity applications. Incorrect settings can lead to uneven melting or excessive hot cracking.
Workshop Practice & Instructions
Use a closed chamber with a mechanical orbital system. Ensure the electrode is correctly set and the workpiece is stably positioned. The current and rotation speed of the electrode must be precisely maintained to ensure a clean joint.