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- Title
Development of Approaches to Optical Diagnostics of Laser Weld Formation Process in Real Time Based on Laser Emission Spectroscopy.
- Authors
Maslov, N. A.; Konstantinov, S. A.; Malikov, A. G.
- Abstract
Metal welding is subject to all sorts of random processes that worsen the quality of the seam—from the presence of inhomogeneities in metal to spontaneous pulse processes. Selective destructive pre- welding testing cannot eliminate the presence of inhomogeneities and will not help with spontaneous violations of the regime. Therefore, today, especially in connection with the mass introduction of fiber lasers, the development of new approaches to the diagnosis of the laser welding process in real time is relevant. The objective of this work was to develop approaches to optical diagnostics of the formation of heterogeneous material based on laser emission spectroscopy. An experimental setup has been created to develop approaches to optical diagnostics of the heterogeneous material formation process, which is an urgent task for additive technologies and laser welding. It is shown that for aluminum alloys 1420, 1580, AMG (Russia) that are relevant in the industry, it is possible to record the spectra of a gas-plasma plume that occurs under the influence of laser radiation on the metal surface. These spectra depend on the mode of exposure to radiation and reflect the processes of evaporation of atoms and molecules from the melt bath. Further research will make it possible to establish the nature of this connection and to develop optimal modes of technological processes on its basis, as well as to test these processes in real time.
- Subjects
LASER welding; LASER spectroscopy; EMISSION spectroscopy; LASER beams; INHOMOGENEOUS materials; FIBER lasers
- Publication
Russian Journal of Nondestructive Testing, 2023, Vol 59, Issue 6, p736
- ISSN
1061-8309
- Publication type
Article
- DOI
10.1134/S1061830923700444