Adaptive regulation of the laser metal deposition process by the optical signal

The features of controlling the parameters of the laser metal deposition process (LMD) by the optical signal are considered. It is shown that to control and manage the process, it is necessary to use the principles of adaptive regulation. A review of research in the field of process control systems for laser metal additive manufacturing has been carried out. The developed system for the on-line control of LMD with feedback on the optical signal from the processing zone is described. The system provides the recognition of deviations during the process in real time and performs corrective actions to maintain the processes in the required regime. The use of the developed control system led to a decrease in the deviation of the track height from the set value on the trajectories with sharp turns.