RADEV, Hristo; YAKIMOV, Hristo; ALEKSANDROVA, Irina. INVESTIGATION AND MODELLING OF SURFACE ROUGHNESS DURING MILLING OF GJL-250 GRAY CAST IRON AND S235JR STEEL USING MIXED CERAMIC TOOLS. Proceedings of the International Conference on Secure Systems Design and Technology Development, [S. l.], v. 2, p. 235–241, 2026. DOI: 10.68302/std2026.vol2.18. Disponível em: https://journal.etrconf.eu/std/article/view/18. Acesso em: 27 sep. 2026.