“EFFECT OF FRICTION ON BARRELLING AND COLD WORKABILITY LIMITS OF AL-4%COPPER ALLOY DURING COLD UPSET FORGING AND FEA MODELING”, JME, vol. 4, no. 4, pp. 223–232, Dec. 2009, Accessed: Sep. 05, 2025. [Online]. Available: https://www.smenec.org/index.php/1/article/view/569