Numerical modeling of cutting process of steel sheets using a laser beam Zbigniew Saternus, Wiesława Piekarska, Marcin Kubiak, Tomasz Domański and Dorota Goszczyńska-Króliszewska MATEC Web Conf., 254 (2019) 08004 Published online: 15 January 2019 DOI: 10.1051/matecconf/201925408004