A study of gas flow pattern, undercutting and torch modification in variable polarity plasma arc welding

A study on the plasma and shield gas flow patterns in variable polarity plasma arc (VPPA) welding was undertaken by shadowgraph techniques. Visualization of gas flow under different welding conditions was obtained. Undercutting is often present with aluminum welds. The effects of torch alignment, sh...

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Bibliographische Detailangaben

Hauptverfasser:	Mcclure, John C., Hou, Haihui Ron
Format:	Report
Sprache:	eng
Schlagworte:	Mechanical Engineering
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