← Glossary

Binary Shielding Gas Mixture

A mixed shielding gas replacement consists of two gases that improve droplet transfer and penetration geometry in the MAG process. It ensures a stable weld and prevents porosity.

Physical-Chemical Mechanism

A mixed shielding gas replacement combines two gases that interchange with each other. This influences droplet transfer and penetration geometry by stabilizing the environment and preventing porosity.

Metallurgical Relevance & Welding Risks

Insufficient or incorrect gas mixture can lead to unstable droplets, causing porosity and cracks in the weld. A stable penetration geometry is crucial for a strong and tough joint.

Workshop Practice & Instructions

Use a gas mixture of argon and helium in an 80:20 ratio. Ensure the gas is used according to welding guidelines. Monitor the temperature and pressure of the gas mixture during the process.

MetallurgieSchweißtechnik

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