Experimental Analysis of Welding Parameters on Variable Polarity Plasma arc Pressure
作者单位：Logistic academy Naval University of Engineering National Science and Technology on Remanufacturing Laboratory Academy of Armored Force Engineering
会议名称：《2012 International Conference on Engineering Materials (ICEM 2012)》
会议日期：2012年
学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 080201[工学-机械制造及其自动化]
基 金：the financial support provided by General Project of Natural Science Foundation of China (NSFC) (51175513) the National Development Scheme of Key Fundamental Research (Nation “973” Project) of China (2011CB012303) S&T Project (2011BAC10B05)
关 键 词：Variable Polarity Plasma Arc Pressure Welding Current Plasma Gas Flow
摘 要：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.