ISSN 0021-3454 (print version)
ISSN 2500-0381 (online version)
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vol 67 / February, 2024
Article

DOI 10.17586/0021-3454-2023-66-2-139-147

UDC 620.16:53.082.4

EXPERIMENTAL STUDY OF ACOUSTIC EMISSION PARAMETERS DURING CYCLIC TESTING OF METAL PRODUCTS OF ADDITIVE MANUFACTURING

A. S. Kovalevich
ITMO University, Faculty of Control Systems and Robotics;


I. Y. Kinzhagulov
ITMO University; Associate professor


K. A. Stepanova
ITMO University, Saint Petersburg, 197101, Russian Federation; Assistant


D. O. Kuzivanov
ITMO University, Saint Petersburg, 197101, Russian Federation; Engineer


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Abstract. The kinetics of destruction of metal products made using additive manufacturing technologies, namely, selective laser melting, is studied. Features of this method of products manufacturing process give rise to various kinds of structural inhomogeneities in the material, which, in turn, affect the strength characteristics. The use of the acoustic emission method in the study of fracture kinetics makes it possible to reveal the initiation of fatigue fracture processes in the material.
Keywords: additive technologies, acoustic emission, non-destructive testing, selective laser melting, low-cycle fatigue

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