Topic
Submerged arc welding
About: Submerged arc welding is a research topic. Over the lifetime, 5558 publications have been published within this topic receiving 39592 citations.
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TL;DR: In this article, the combined effect of flux mixture and welding parameters on submerged arc weld metal chemical composition and mechanical properties was investigated and it was shown that the two factor interaction effect is higher than the individual effect of mixture related variables.
104 citations
TL;DR: In this paper, the formation mechanism of spatter and the corresponding relationships between the spatter formation and molten pool behavior were investigated by using the high-speed camera and the X-ray transmission imaging system during laser welding under different welding parameters.
100 citations
Journal Article•
TL;DR: In this article, mathematical models were developed to relate the process parameters and the weld bead quality parameters in submerged arc welding of pipes, and the optimization of weld bead volume was carried out using the optimization module available in the MATLAB version 4.2b software package.
Abstract: As a part of a study and analysis on the effects of process parameters on weld bead volume in submerged arc welding (SAW) of pipes, mathematical models were developed to relate the process parameters and the weld bead quality parameters. Further, the optimization of weld bead volume was carried out using the optimization module available in the MATLAB version 4.2b software package. The mathematical models thus developed for optimization are also helpful in predicting the weld bead quality parameters and in setting process parameters at optimum values to achieve the desirable weld bead quality at a relatively low cost with a high degree of repeatability and increased production rate. Total volume of the weld bead, an important bead parameter, was optimized (minimized), keeping the dimensions of the other important bead parameters as constraints, to obtain sound and superior quality welded pipes. Sensitivity analysis was also carried out to predict the direct and few interaction effects of important bead parameters on the total volume of the weld bead, and the results are presented in graphical form. The results of the sensitivity analysis are very useful in understanding the interdependence of various weld bead quality parameters in controlling the volume of the weld bead, to improve weld quality, to increase productivity with the available welding facilities and to minimize the total welding cost.
100 citations
TL;DR: In this paper, the second peak temperature during real and simulated welding was studied in a double-pass tandem submerged arc welding process with total heat input of 6.98kJ/mm and thermal cycles to simulate microstructure of reheated coarse grained heat affected (CGHAZ) zones.
100 citations
TL;DR: In this article, a three dimensional laser deep penetration welding model in which volume of fluid (VOF) method was combined with a ray tracing algorithm was used to simulate the dynamic coupling between keyhole and molten pool in laser full penetration welding.
97 citations