“Study The Influence of Forming Conditions Like Deformation Speed on Void Closure in Open Die Forging”. Al-Khwarizmi Engineering Journal 4, no. 4 (March 1, 2019): 106–121. Accessed April 30, 2025. https://www.alkej.uobaghdad.edu.iq/index.php/alkej/article/view/613.