Qualitative and quantitative analyses of arc characteristics in SMAW

Masaya Shigeta, Takahiro Ikeda, Manabu Tanaka, Tetsuo Suga, Bovornchok Poopat, Somporn Peansukmanee, Niwat Kunawong, Ackadech Lersvanichkool, Hiroaki Kawamoto, Supot Thongdee, Kazuyuki Suenaga, Makoto Ota

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Pages (from-to)355-361
Number of pages7
JournalWelding in the World
Issue number2
Publication statusPublished - 2016 Feb 1
Externally publishedYes


  • Electric arcs
  • Imaging
  • MMA welding
  • Monitoring systems
  • Sensors
  • Spatter
  • Stability

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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