Engineering Physics Annotation << Back Investigation of the Surfacing Process and Development of a System for Diagnosing Defects Mantserov S.A., Anosov M.S., Zhelonkin M.V., Fedosova L.O. The article discusses the surfacing process, which is used for surfacing blanks, restoring the geometry of worn machine parts, creating hardening layers and bimetallic structures. The authors of the article emphasize that surfacing, which is one of the types of welding technologies, requires careful quality control of the deposited layer to avoid deformation of the base part. The work describes the methods of quality control of deposited layers, including visual-optical control, which is the main non-destructive diagnostic method. In addition, the infl uence of various parameters of the surfacing process on the formation of defects is studied, which allows developing recommendations for optimizing the process and improving the quality of the deposited layer. In conclusion, the article discusses the prospects for using a machine vision system and an acoustic emission method to automate diagnostics and quality control of the deposited layer. Keywords: automation of control of the deposited layer, acoustic emission, non-destructive testing, surfacing technology, neural networks, vision systems, surfacing quality control. DOI: 10.25791/infizik.11.2024.1440 Pp. 55-63.