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A new efficient welding method, Consumable DE-GMAW was proposed. According to the many problems occurred when the welding process is open-loop, such as instability of the welding process and a large welding spatter, etc. A real-time target hardware platform was built for consumable DE-GMAW based on xPC, and a rapid prototyping control system was also developed for consumable DE-GMAW with the Matlab/Simulink...
This application paper concerns the modeling and control of an innovative welding process, namely, the Consumable Double-Electrode Gas Metal Arc Welding. This innovative process can dramatically increase welding productivity and reduce weld distortion. It has demonstrated the feasibility to double the travel speed for automatic welding but requires controls to realize its unique advantages. To reach...
This paper addresses the development of an optimal model predictive control system for quasi-keyhole arc pipe welding process (QAPWP). To this end, a single input two output (SITO) linear discrete model structure is proposed through mechanism analysis. Its parameters are identified offline and updated online. An optimal model predictive control (MPC) algorithm is designed to control the process. Closed-loop...
This paper addresses the modeling and control of an innovative welding process namely the consumable double-electrode gas metal arc welding. Because the model of a welding process typically depends on manufacturing conditions, it is proposed that the process be modeled as an interval model whose parameters are bounded by intervals. Experiments have been conducted with selected manufacturing conditions...
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