Monitoring of Laser Processing of Structural Materials Using Thermal Imaging and Spectral Technology

The prospects for thermal imaging and spectral technology in organizing the monitoring of laser technology processes for high-temperature modification of structural materials are analyzed. It is shown that the use of thermal imaging technology is appropriate during setup of these processes. For continuous monitoring it is more promising to use small-sized spectral technology. Solutions are proposed in which it can be used to conduct continuous monitoring based on the determination of two parameters: the effective heating temperature of the treated surface in the interaction region of the laser radiation and a parameter associated with the effective heating area. The prospects for introducing small-sized spectral devices for continuous monitoring into the feedback loop of the control system for laser systems are demonstrated.