Ambroziak, Andrzej, Piotr Białucki, Artur Lange, Grzegorz Ziółkiewicz, Wiesław Derlukiewicz, and Karolina Goławska. “Investigations of Copper Joints Welded by Ultrasonic”. Welding Technology Review 90, no. 8 (August 10, 2018). Accessed November 22, 2024. https://pspaw.pl/pspaw/article/view/921.