Dahham Younis, Alaa, Anmar Musaid Al-Nuaimi, Ziad Shakeeb Al Sarraf, and Muhsin Mahmood Hamdoon. “The Effect of Periodic Friction and Upsetting Pressure on Rotary Friction Welding Process”. Al-Rafidain Engineering Journal (AREJ) 29, no. 2 (September 1, 2024): 65–75. Accessed August 7, 2025. https://ojs.uomosul.edu.iq/index.php/arej/article/view/27047.