TY JOUR TI DEVICES AND VENTILATION PROCESS DURING EXECUTION ELECTRIC WELDING KW Arc welding KW local exhaust ventilation KW general ventilation KW efficiency KW computer simulation JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Shaptala, V.V. AU Hukalenko, E.E. AU Severin, N.N. AU Gusev, Y.M. PY 2020 IS 5 PB Belgorod State Technological University named after V.G. Shukhov