Research on Lagging Melt Phenomenon and Influencing Factors of Flux Cored Arc Welding

Abstract:

Lagging melt phenomenon is the special phenomenon of flux cored arc welding, studying lagging melt phenomenon is very valuable for the design and improvement of flux cored wire. Used digital camera technology, recorded the lagging melt phenomenon of acid、basic and metallic slag systems flux cored arc welding in CO₂ protective atmosphere. Analyzed its mechanism and influencing factors of lagging melt phenomenon. The results shows that lagging melt phenomenon under low welding criterion is not obvious in comparison to high welding criterion but still shows lagging melt tendency. Under high welding criterion lagging melt degree increases and metal droplet separated from lagging melt flux core forms separated transfer. Under same welding criterion, lagging melt degree of basic slag system is maximum, acid slag takes the second place and metallic slag system is minimum.

• Periodical: Advanced Materials Research (Volumes 557-559)
• Pages: 1326-1329
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.557-559.1326
• Online since: July 2012
• Authors: Yan Wang
• Keywords: Flux Cored Arc Welding, Lagging Melt Phenomenon, Slag System, Welding Criterion

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