Timofiejczuk A.: Estimation of welding process stability based on image analysis and recognition. Diagnostyka 4(52)/2009

Vision systems are often applied to control the quality of welds or some parameters of welding processes. A review of current applications has shown that such approaches are being used for control of weld geometry, assessment of weld quality, and also for adaptive control of the welding processes. An approach presented in the paper concerns the application of a method based on image analysis and recognition. Estimation of welding process stability has been based on results of the application of this method. Observation of the welding arc with the use of the vision system can provide us with the information about stability of the arc and through this – stability of the welding process and indirectly, the quality of a weld being made. The investigations described in the paper have been carried out within the framework of PW-004/ITE/10/2006 project realized i