- Variable Polarity Plasma Arc
- Abbreviation: VPPA (welding technique)
Универсальный русско-английский словарь. Академик.ру. 2011.
Variable Polarity Plasma Arc
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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. The key difference from GTAW is that in PAW … Wikipedia
VPPA — Variable Polarity Plasma Arc Contributor: CASI … NASA Acronyms
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VPPA — abbr. Variable Polarity Plasma Arc … Dictionary of abbreviations
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