Arc characteristics of submerged arc welding with stainless steel wire
来源期刊：International Journal of Minerals Metallurgy and Materials2014年第8期
论文作者：Ke Li Zhi-sheng Wu Cui-rong Liu Feng-hua Chen
文章页码：772 - 778
摘 要：The arc characteristics of submerged arc welding（SAW） with stainless steel wire were studied by using Analysator Hannover（AH）. The tests were carried out under the same preset arc voltage combined with different welding currents. By comparing the probability density distribution（PDD） curves of arc voltage and welding current, the changes were analyzed, the metal transfer mode in SAW was deduced, and the characteristics of a stable arc were summarized. The analysis results show that, with an increase of welding parameters, the short-circuiting peak in the PDD curves of arc voltage decreases gradually until it disappears, and the dominant metal transfer mode changes from flux-wall guided transfer to projected transfer and then to streaming transfer. Moreover, when the PDD curves of arc voltage are both unimodal and generally symmetrical, the greater the peak probability and the smaller the peak span, the more stable the arc becomes.
Ke Li，Zhi-sheng Wu，Cui-rong Liu，Feng-hua Chen
College of Materials Science and Engineering, Taiyuan University of Science and Technology
摘 要：The arc characteristics of submerged arc welding（SAW） with stainless steel wire were studied by using Analysator Hannover（AH）. The tests were carried out under the same preset arc voltage combined with different welding currents. By comparing the probability density distribution（PDD） curves of arc voltage and welding current, the changes were analyzed, the metal transfer mode in SAW was deduced, and the characteristics of a stable arc were summarized. The analysis results show that, with an increase of welding parameters, the short-circuiting peak in the PDD curves of arc voltage decreases gradually until it disappears, and the dominant metal transfer mode changes from flux-wall guided transfer to projected transfer and then to streaming transfer. Moreover, when the PDD curves of arc voltage are both unimodal and generally symmetrical, the greater the peak probability and the smaller the peak span, the more stable the arc becomes.
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