Plasma arc welding

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Invention

Domain

Science and technology

Knowledge cost

2

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What Wikipedia says

Plasma arc welding (PAW) is an arc welding process similar to gas tungsten arc welding (GTAW). The electric arc is formed between an electrode (which is usually but not always made of sintered tungsten) and the workpiece.

Excerpt from the Wikipedia article “Plasma arc welding”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Marcelochal, Public domain, via Wikimedia Commons.