TY JOUR TI Hot forming of welded blanks of aluminum alloy sheets 1565 chM KW friction stir welding; aluminum alloy; hot forming; weld metal; microstructure; superductility KW abnormal grain growth JO Science intensive technologies in mechanical engineering AU Ovchinnikov, V.V. AU Polyakov, D.A. PY 2024 IS 2024 PB Bryansk State Technical University