Welding experiment with Igor Welder using WITT gas mixer BM-2M

What role does the gas actually play in gas-shielded arc welding? Which gas should I use? Argon? CO₂? Or would you prefer a gas mixture? But which one? And what happens if you weld without any gas at all?
Igor Welder, welding expert and passionate RUclips content creator, answers these questions in one of his latest videos. In a practical test, he experiments with various shielding gases and shows the effects on the quality of the weld seam. His tool: the BM-2M gas mixer from WITT.
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