20.500.12556/RUL-101310 Study of an annular laser beam based axially-fed powder cladding process An annular laser beam based powder cladding head, which enables an axial powder feeding and variation of the laser beam intensity distribution (LBID) on the workpiece surface is presented. The influence of typical LBIDs, including Ring, Tophat(-), Tophat(+), and Gaussian-like, on a cladding process has been characterized based on the process and melt pool visualization, powder catchment efficiency, clad layer geometry, and porosity. The results showed that the most stable process without plasma formation but with low dilution and porosity of the clad layer can be achieved within the range from a Ring to a Tophat(-) LBID. Additionally, axial powder feeding results in a high powder catchment efficiency above 80%. additive manufacturing laser powder dodajne tehnologije laser prah true false true Angleški jezik Slovenski jezik Članek v reviji 2018-05-24 09:15:05 2018-05-24 09:15:07 2022-08-14 03:43:57 0000-00-00 00:00:00 2018 0 0 Str. 241-244 iss. 1 Vol. 67 2018 0000-00-00 PostprintKoncna Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 2020-05-01 621.791(045) 0007-8506 10.1016/j.cirp.2018.04.082 16026395 170267 RAZ_Govekar_Edvard_i2018.pdf RAZ_Govekar_Edvard_i2018.pdf 1 89F57539989FAD19E25877A2A384700C 23321e925becbad41eb1895312448153cec9b65af3a1a278f8a5d7f875a3b12c 3f29ce4d-a1b6-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=116652 https://www.sciencedirect.com/science/article/pii/S0007850618301069 1 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=111257 Fakulteta za strojništvo 0 0 0