Chaosweld

ChaosWeld is a research project of using new approach to welding control using Chaos theory. In Arc welding processes, the knowledge of material transfer (electrode melting, droplet formation and transfer to the weld pool) is essential to analysis and control of welding process. This is especially important in welding processes, which are used in automation or robotisation, where more stable welding process is required (e.g. MIG/MAG or GMAW). Material transfer mode affects stability of the welding process, which finally affects the quality of welded joints.
In past material transfer in welding process was assumed to be stohastic process. In early studies in 1999 and 2000, indication of possibility to detected signs of chaotic behavior in the short circuiting transfer was found. . In later studies it was found that the chaotic behavior also appearing in other transfer modes of material, shuch as globular.
If the process of material transfer from electrode to the weld pool is chaotic and not stohastic, then it’s possible to achieve stable transfer and thereby stable welding process using the theory of chaos control. One of the characteristics of the chaotic process is sensitivity to initial conditions. If approach that is used in heart pacemakersis applied, then the process of material transfer and thereby the welding process can be controlled by very small system perturbations, which can lead to stable and predictable process. This method of control the welding process could have impact on the design of welding equipment and related control systems.
Some initial articles in this research area were published in year 2001 and 2002. Some of the researchers find this field as a potential new interesting trend in welding research.

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