Weld Bead Geometry Control of Welds Made by Submerged Arc Welding: A Review
Keywords:
SAW, fillet weld bead, control and response parameters.Abstract
Submerged Arc Welding (SAW) has been used as an important joining process for fillet welds due to its own inherent advantages. Since welding arc and weld bead are not visible during the Submerged Arc Welding, so to run the submerged arc welding machine in automated mode, the welding parameters have to set in advance to get the desired weld bead geometry. Various studies have been made for the weld bead geometry control of weld made by the submerged arc welding. Various statistical tools like Factorial Design Approach, Response Surface Methodology, Artificial Neural Networks, Genetic Algorithm,Taguchi Method can been used to correlate the weld bead geometry parameters with the control parameters like open circuit voltage(V), wire feed rate(F), welding speed(S), nozzle to plate distance(N),etc. Mathematical models have to be developed for this purpose for correlating the response parameters with the control parameters. For each type of parent metal and thickness a separate mathematical model has to be formulated which will be applicable to that particular material and the plate thickness only. The following text presents a review of the significant work done for this purpose till date.
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