Experimental Analysis of Welding Parameters on Variable Polarity Plasma Arc Pressure

Abstract:

Variable polarity plasma arc welding has been widely used to manufacture industries. The effects of welding current and plasma gas flow as the most important parameters on variable polarity plasma arc pressure were discussed experimentally. To welding current, two experimental were designed to discuss the effects of straight polarity current and reversed polarity current on arc pressure respectively. It could be concluded that arc pressure is quadratic with welding current. To plasma gas flow, both experimental and numerical analysis are used to discuss the mechanisms of plasma gas flow to arc pressure, and it could be conclude that arc pressure is quadratic with plasma gas flow rather than linear.

• Periodical: Advanced Materials Research (Volume 651)
• Pages: 355-360
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.651.355
• Online since: January 2013
• Authors: Yi Jiang, Ming Liu, Yao Hui Lu, Bin Shi Xu
• Keywords: Arc Pressure, Plasma Gas Flow, Variable Polarity Plasma, Welding Current

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