Metal Active Gas Welding
Metal active gas welding is a welding process with a consumable wire electrode under reactive gases such as argon or helium. It enables high deposition rates and deep penetration, which is useful for difficult materials.
Physical-Chemical Mechanism of Action
The wire electrode is welded under a gas jet that shields and reacts with the melt. This prevents oxidation and allows precise control of the melting process.
Metallurgical Relevance & Risks in Welding
This process is particularly suitable for difficult materials such as steel or nickel. It can produce high pressure and extreme temperatures, which increases safety considerations. Incorrect gas ratios can lead to uneven melting performance and porosity.
Workshop Practice & Action Guidelines
Use reactive gases such as argon or helium in the correct concentration. Ensure the gas supply is stable and free from air mixing. Keep the electrode at the optimal distance from the workpiece surface and ensure uniform melting performance.