TY JOUR TI AUTOMATION OF THE PROCESS OF QUALITY CONTROL OF WELDED JOINTS KW electric arc welding KW welded joints KW welding defects KW non-destructive testing methods KW ultrasonic testing KW testing automation JO Modeling of systems and processes AU Nikolenko, S.D. AU Sazonova, S.. AU Akamsina, N.V. PY 2020 IS 13 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov