20.500.12556/RUL-108519 Initial transient phase and stability of annular laser beam direct wire deposition In this paper the stability of the annular laser beam (ALB) direct wire-deposition process, which enables process symmetry and a well-defined ALB workpiece irradiation proportion (WIP) and related energy input onto the workpiece and the wire surface is considered. Various initial process phase strategies with respect to different initial wire-end positions and WIPs were analysed based on the process visualization and outcome, and the melt pool temperature. It was shown that in addition to a precise synchronization of the mutually time-dependent ALB power, wire and workpiece feeding velocity, the fastest and the most robust transition into a stable stationary process could be achieved with the initial position of the wire-end on the workpiece surface. Additionally, the WIP was shown to have a strong and nonlinear influence on the process stability. additive manufacturing lasers wire dodajne tehnologije laserji žice true false true Angleški jezik Slovenski jezik Članek v reviji 2019-07-05 10:21:42 2019-07-05 10:21:45 2025-03-18 11:42:50 0000-00-00 00:00:00 2019 0 0 Str. 233-236 iss. 1 Vol. 68 2019 0000-00-00 PostprintKoncna Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 2021-04-30 621.791(045) 0007-8506 10.1016/j.cirp.2019.04.118 16601883 170267 RAZ_Kotar_Matjaz_i2019.pdf RAZ_Kotar_Matjaz_i2019.pdf 1 C271A0BC4CFADE035731D3F8255FF063 f0988863ce9863e8f4cd207ad4d6019cef4bce27c61412119506a82aa2168840 abd3ff19-a1b6-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=119557 https://www.sciencedirect.com/science/article/pii/S0007850619301507?via%3Dihub 1 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=119482 Fakulteta za strojništvo 0 0 0