10.14489/td.2025.10.pp.025-040

2025, 10 October

DOI: 10.14489/td.2025.10.pp.025-040

Kozochkin M. P., Fedorov S. V., Migranov M. Sh., Ostrikov E. A., Gusev A. S.
THE RELATIONSHIP OF ACOUSTIC EMISSION SIGNAL PARAMETERS WITH THE FEATURES OF PROCESSING MATERIALS WITH CONCENTRATED ENERGY FLOWS
(pp. 25-40)

Abstract. Equipping equipment with various sensors allows for a deeper understanding of ongoing processes, the understanding of which is difficult due to their high speed, the small size of the core of these processes and the difficulties of direct observation. Processing with concentrated energy flows (CEF) is fully related to such processes. CEF processing occurs in such small volumes that even an experienced operator finds it difficult to navigate what is happening. Such technologies include laser, electrical discharge, electron beam processing and a number of similar technologies.Among all the problems that arise when creating automated equipment, monitoring the processing process itself remains the most difficult task. This is due to the fact that it is almost impossible to place sensors in the processing zone itself, and indirect monitoring methods are associated with the influence of various random factors and a decrease in the information content of signals when sensors are located remotely from the core of the technological process.Analysis of acoustic emission (AE) signals as a non-destructive testing method has long won a strong place in industry for diagnosing the condition of bearing assemblies, gears and other rotor mechanisms. The literature provides much more modest information on the use of AE for monitoring various technological processes, which is associated with the difficulties of their analysis. However, AE signals accompany not only blade processing, but are also observed during phase transformations in materials, during crystallization and melting of matter, during the formation of a new phase in supersaturated solutions, and during plastic deformation of materials. Works on the study of AE signals during plastic deformation of materials, accompanied by the development of defects in their structure, are directly related to the cutting process. However, there are still few publications in the literature devoted to the study of the relationships between the parameters of AE signals and the features of technological processes of processing with concentrated energy flows. The purpose of this work is to identify the parameters of AE signals that reflect the features of the impact of laser pulses on various materials, and to study the possibilities of using these parameters as a tool for cognition

Keywords: diagnostics, acoustic emission, laser processing, plasma torch, self-focusing, spectrum, frequency range.

+ - About the Authors Click to collapse

M. P. Kozochkin, S. V. Fedorov, M. Sh. Migranov, E. A. Ostrikov, A. S. Gusev (Moscow State Technological University “Stankin”, Moscow, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра. , Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра. , Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра. , Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра. , Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

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