Ortega, Francisco, William Fernandez, Juan Felipe Santa, and Jimy Unfried-Silgado. 2020. “Effects of Tool Shoulder Geometry on Mechanical Properties and Microstructure of Friction-Stir Welded Joints of AA5083-0 Aluminium Alloys”. Journal of Mechanical Engineering and Sciences 14 (4):7507-19. https://doi.org/10.15282/jmes.14.4.2020.17.0591.