TY JOUR TI Special features of weld formation for laser welding of sheet steel 09mn2si KW laser welding KW plasma cutting KW structural steel KW weld KW heat-affected zone (HAZ) KW structural transformations KW defects KW quality KW efficiency JO Science intensive technologies in mechanical engineering AU Guzanov, B.N. AU Anahov, S.V. AU Michurov, N.S. AU Bilalov, D.H. PY 2025 IS 2025 PB Bryansk State Technical University