Qualitative and quantitative analyses of arc characteristics in SMAW

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...

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Bibliographic Details
Published in:Welding in the world 2016-02, Vol.60 (2), p.355-361
Main Authors: Shigeta, Masaya, Ikeda, Takahiro, Tanaka, Manabu, Suga, Tetsuo, Poopat, Bovornchok, Peansukmanee, Somporn, Kunawong, Niwat, Lersvanichkool, Ackadech, Kawamoto, Hiroaki, Thongdee, Supot, Suenaga, Kazuyuki, Ota, Makoto
Format: Article
Language:English
Subjects:
Chemistry and Materials Science
Materials Science
Metallic Materials
Research Paper
Solid Mechanics
Theoretical and Applied Mechanics
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Summary: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.
ISSN:0043-2288
1878-6669
DOI:10.1007/s40194-015-0288-2