电焊机2017，Vol.47Issue(12)：17-23,7.DOI:10.7512/j.issn.1001-2303.2017.12.04
窄坡口MAG焊摆动宽度对电弧行为特性的影响
Influence of the swing arc width on the arc and metal transfer in narrow gap MAG welding
摘要
Abstract
Based on narrow groove welding torch swing mathematical model and wire melting model,establishes mathematical model of arc length the torch swing system in narrow groove MAG welding.Welding tests of different torch swing widths were carried out under conditions of spray transfer and short circuit transfer respectively.Getting its arc and droplet image through the high-speed camera system,influence of the swing arc width on the arc and metal transfer were studied.Finally,using the established mathematical model to simulate the variation the law of current,voltage and arc length over time.Arc and droplet phenomena are explained in the theory in the test of short circuit transfer welding with torch swing width 3 mm.The study show that the arc combustion is stable,the droplet transfer is stable,and the weld quality is good when the distance between the wire and the side wall is 0～0.5 mm.关键词
窄坡口/摆动宽度/电弧形态/熔滴过渡/仿真Key words
narrow groove/swing width/arc shape/droplet transfer/simulation分类
矿业与冶金引用本文复制引用
韩肖亮,罗雨,周灿丰,黎娟,杨成功,路浩..窄坡口MAG焊摆动宽度对电弧行为特性的影响[J].电焊机,2017,47(12):17-23,7.基金项目
国家自然科学基金(51305037) （51305037）
北京市教委面上项目(KM201710017004) （KM201710017004）
北京市属高校创新团队建设提升计划(IDHT20130516) （IDHT20130516）
