“Experimental Investigation of Hardness and Surface Roughness in the Friction Stir Welding of the 6061-T6 Aluminum Alloy”. Hungarian Journal of Industry and Chemistry 52, no. 1 (September 8, 2024): 37–43. Accessed October 16, 2024. https://hjic.mk.uni-pannon.hu/index.php/hjic/article/view/1222.