20.500.12556/RUL-127109 Technical model of micro Electrical Discharge Machining (EDM) milling suitable for bottom grooved micromixer design optimization In this paper, development of a technical model of micro Electrical Discharge Machining in milling configuration (EDM milling) is presented. The input to the model is a parametrically presented feature geometry and the output is a feature machining time. To model key factors influencing feature machining time, an experimental campaign by machining various microgrooves into corrosive resistant steel was executed. The following parameters were investigated: electrode dressing time, material removal rate, electrode wear, electrode wear control time and machining strategy. The technology data and knowledge base were constructed using data obtained experimentally. The model is applicable for groove-like features, commonly applied in bottom grooved micromixers (BGMs), with widths from 40 to 120 µm and depths up to 100 µm. The optimization of a BGM geometry is presented as a case study of the model usage. The mixing performances of various micromixer designs, compliant with micro EDM milling technology, were evaluated using computational fluid dynamics modelling. The results show that slanted groove micromixer is a favourable design to be implemented when micro EDM milling technology is applied. The presented technical model provides an efficient design optimization tool and, thus, aims to be used by a microfluidic design engineer. micromachining micro EDM milling empirical modelling micromixer design for manufacturing computational fluid dynamics mikroizdelava mikro elektroerozijsko dolbenje empirično modeliranje mikromešalnik dizajn za izdelavo numerična analiza dinamike tekočin true false true Angleški jezik Slovenski jezik Članek v reviji 2021-05-18 11:54:58 2021-05-18 11:55:05 2022-09-06 03:49:47 0000-00-00 00:00:00 2020 0 0 20 str. iss. 6, art. 594 Vol. 11 Jun. 2020 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 519.6:532(045) 2072-666X 10.3390/mi11060594 20114691 RAZ_Sabotin_Izidor_2020.pdf RAZ_Sabotin_Izidor_2020.pdf 1 F5D58A230B91C26FBDA685407536C49F 81e41512e4e2c2b994c3464d6d387686deb4aafaf4abd23bf35b94efa6f7e511 3bf9b9b2-6175-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=152254 https://www.mdpi.com/2072-666X/11/6/594 1 1415fb0f-b7bf-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=143334 Fakulteta za strojništvo 0 0 0