Application features of the multi-wave optical diagnostics complex in the technology of laser metal deposition

Abstract

Abstract The features of the application of the multi-wave complex (MCOD) for optical diagnostics of physical processes under the action of laser radiation on the melt surface in the technology of laser deposition of metals (LMD) are considered. The registration of thermal radiation in different ranges of the optical spectrum is used in the MCOD to evaluate the geometric characteristics of the melt pool and determine the maximum temperature of the melt pool Tmax . The dependences of the track height and the width of the melt pool on Tmax are obtained for different values of the scanning speed. It is shown that in the speed range from 5 to 8 mm/s, the track height practically does not change while maintaining Tmax .