Engineering Physics Annotation << Back PREDICTION OF THERMAL DEFORMATION DURING THE PROCESS OF RESTORATION REPAIR OF METAL STRUCTURES BY SURFACING M.I. BIRYUKOV, YU.YU. GROMOV, A.A. KHVOSTOV The article proposes an approach to the formation of a predictive mathematical model that formalizes the evolution of deformations of a metal structure during restoration repairs using the surfacing method using electric arc welding. An example is shown of predicting thermal defor-mations of a metal structure for a given geometry of a restored element, motion trajectory and ener-gy parameters of a heat source using the example of the process of restoring wedge grooves of a railway rolling stock bogie frame using the surfacing method. Keywords: mathematical model, electric arc welding, thermal stress. DOI: 10.25791/infizik.10.2023.1361 Pp. 40-46.