Qualitative and quantitative analyses of arc characteristics in SMAW
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Author list: Shigeta M., Ikeda T., Tanaka M., Suga T., Poopat B., Peansukmanee S., Kunawong N., Lersvanichkool A., Kawamoto H., Thongdee S., Suenaga K., Ota M.
Publisher: Springer
Publication year: 2016
Journal: Welding in the World -London- (0043-2288)
Volume number: 60
Issue number: 2
Start page: 355
End page: 361
Number of pages: 7
ISSN: 0043-2288
eISSN: 1878-6669
Languages: English-Great Britain (EN-GB)
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Abstract
This study was conducted to develop a quantitative evaluation system for arc characteristics such as arc stability and welding spatter generation related to shielded metal arc welding (SMAW) without human sensory evaluation. Factors that correspond to sensory evaluations by welders were investigated based on image processing. For the quantitative evaluation of arc stability, results show that the root mean square and the standard deviation of the arc center fluctuation, respectively, correspond to welders’ sensory evaluation at AC and DC discharges. For welding spatter generation, a method of counting white pixels in a binarized image evaluates the number and size of welding spatters which closely coincide with welders’ sensory evaluations. © 2016, International Institute of Welding.
Keywords
Electric arcs, Imaging, MMA welding, Monitoring systems, Spatter
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