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.
Keywords (IIW Thesaurus)
MMA welding Electric arcs Stability Spatter Sensors Monitoring systems Imaging
This is a preview of subscription content, log in to check access.
Sakai Y (1992) Approach to de-skillization through welding materials. J Jpn Weld Soc 61(1):26–30 (in Japanese)CrossRefGoogle Scholar
Suga T (1995) Increasing efficiency and qualifying of welding process by new welding materials. J Jpn Weld Soc 64(6):452–456 (in Japanese)CrossRefGoogle Scholar
Suban M, Tusek J (2003) Methods for the determination of the arc stability. J Process Technol 143:430–437CrossRefGoogle Scholar
Davies AC (1993) The science and practice of welding, vol 2. Cambridge University Press, CambridgeGoogle Scholar
Yoshida T, Abe T, Onoue H (1960) A proposal to easily find out on arc stability of welding electrode a study on working characteristics of welding electrode. J Jpn Weld Soc 29(4):344–351 (in Japanese)CrossRefGoogle Scholar
Mita T, Sakabe A, Yokoo T (1988) Quantitative estimates of arc stability for CO2 gas shielded arc welding. Weld Int 2(2):152–159CrossRefGoogle Scholar
Yamada R, Uenaka A, Kato T (2007) Analysis of welding arc phenomenon with image processing. Electr Furnace Steel 78(2):115–121 (in Japanese)CrossRefGoogle Scholar
Potapevskii AG, Lavrishchev VY (1972) Welding spatter when CO2 welds are made with Sv-08G2S. Avtom Svarka 8:34–42Google Scholar
Voropai NM, Lavrishcher VYA (1976) Conditions of electrode metal transfer in CO2 welding. Avtom Svarka 5:8–11Google Scholar
Takeuchi Y, Horata A (1980) Influence of gas composition of metal active gas arc welding on operative weldability and mechanical properties of weld metal. Electr Furnace Steel 51(1):34–42 (in Japanese)CrossRefGoogle Scholar