Why Is an Inert Shielding Gas Required for GTA Welding

question 27

Multiple Choice

Why is an inert shielding gas required for GTA welding?

• A) To keep the air away from the hot tungsten and molten weld metal
• B) To help remove the welding fumes to make it easier to see the weld pool
• C) To help reduce the UV light that can cause skin burns
• D) All of the above

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