TY - JOUR
TI - Influence of the joint geometry on heat energy, generated during the plunge stage of friction stir welding
AU - Veljić Darko M
AU - Međo Bojan I
AU - Alić Fikret I
AU - Sedmak Aleksandar S
AU - Lazović Tatjana M
JN - Thermal Science
PY - 2026
VL - 30
IS - 2
SP - 1563
EP - 1572
PT - Article
AB - The numerical simulation of friction stir welded T-joints made of AA2024 T3 is investigated. Analysis of heat generation due to friction and plastic work is performed, as well as of the reaction force in the normal direction during the plunge stage of the friction stir welding. The effect of joint geometry is studied for butt joints and T-joints produced from the same material. Different tool rotation speeds and tool pin lengths were considered forT-joint friction stir welding. It was shown that the temperature at the root of the weld below the tool pin is lower in the T-joint than in the butt joint, due to the efficient conduction of the heat produced through the normal plate. Also, the reaction force was higher for the T-joint than for the butt joint, so, heat production by friction was more intense in comparison with the heat produced by plastic deformation. The reaction force was moderately increased for the tool with a shorter pin, increasing both components of the heat produced. An increase in the tool rotation speed decreased the resistance to the tool plunging into the T-joint, increasing the frictional heat and decreasing the amount of heat generated by plastic deformation.
DO - 10.2298/TSCI250929220V
ER -