Publication Type:

Journal Article


Journal of Mechanical Science and Technology, Korean Society of Mechanical Engineers, Volume 31, Number 5, p.2477-2486 (2017)



Computer circuits, Design matrix, Electric arc welding, Electric welding, Electrodes, Forecasting, Fuzzy logic, Gas metal arc welding, Gas welding, Heat affected zone, Macrostructural characteristics, Simulink modeling, Welding, Welding electrodes, Weldments, Welds, Width ratio, Wire, Wire electrode


This paper describes the relationships between the macrostructural characteristics of weld beads and the welding parameters in Gas metal arc welding (GMAW) using a flat wire electrode. Bead-on-plate welds were produced with a flat wire electrode and different combinations of input parameters (i.e., welding current, welding speed, and flat wire electrode orientation). The macrostructural characteristics of the weld beads, namely, deposition, bead width, total bead width, reinforcement height, penetration depth, and depth of HAZ were investigated. A mapping technique was employed to measure these characteristics in various segments of the weldment zones. Results show that the use of a flat wire electrode improves the depth-to-width (D/W) ratio by 16.5 % on average compared with the D/W ratio when a regular electrode is used in GMAW. Furthermore, a fuzzy logic model was established to predict the effects of the use of a flat electrode on the weldment shape profile with varying input parameters. The predictions of the model were compared with the experimental results. © 2017, The Korean Society of Mechanical Engineers and Springer-Verlag Berlin Heidelberg.


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Cite this Research Publication

S. Karuthapandi, Dr. M. Ramu, and Thyla, P. R., “Effects of the use of a flat wire electrode in gas metal arc welding and fuzzy logic model for the prediction of weldment shape profile”, Journal of Mechanical Science and Technology, vol. 31, pp. 2477-2486, 2017.