TechnicianVision · Knowledge base
Back-To-Basics: Shielding Gas
I-CAR · September 29, 2020
Summary
This article highlights the critical role of shielding gas in preventing weld porosity and ensuring proper penetration during collision repairs. It emphasizes that gas requirements vary by metal type and OEM specifications, such as using 75% Argon/25% CO2 for steel and pure Argon for aluminum and silicon bronze.
What to do on the job
Always verify and use the OEM-specified shielding gas composition for the specific vehicle and metal type being welded.
How to use it
Use this document to justify the necessity of sourcing and using specific welding gases (such as pure Argon for aluminum/silicon bronze or specialized Argon/CO2 blends for steel) as mandated by the OEM repair procedures, ensuring these consumables are accounted for on the estimate.
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