3658 KB44 KB199920252015Jerman, MarkoLebar, AndrejOrbanić, HenriValentinčič, Joškoštevilka:5letnik:61str. 292-302, SI 56ISSN:0039-2480COBISSID:13974043URN:URN:NBN:SI:doc-TOVXYMQXenZveza strojnih inženirjev in tehnikov Slovenije et al.Strojniški vestnikabrazivni vodni curekcelični avtomatinastanek brazdrezalna frontasimuliranjeThe study of abrasive water jet cutting front development using a two-dimensional cellular automata model|In this paper, the cutting front development during abrasive water jet (AWJ) cutting is studied using a two-dimensional cellular automata (CA) model, hence the striation formation phenomenon is studied indirectly. To calculate the shape of the cutting front, the CA model uses the following inputs: cutting velocity, AWJ intensity and material type. The cutting process is described by simplified material removal and AWJ propagation models in the form of CA rules. The rules encompass AWJ ability to erode the workpiece material and, inversely, the workpiece material's resistance to the erosion process. The proposed CA model is validated by checking the trend of the cutting front development at various input parameters. The simulation results are in good agreement with experimentally obtained trends and thus confirm the proper setup of CA rules. This gives a better insight into the AWJ cutting mechanismZa obdelovance izdelane z abrazivnim vodnim curkom (AVC) je značilna brazdava površina, usmerjena v nasprotni smeri rezanja. Ukrivljenost in debelina brazd sta v glavnem odvisni od materiala obdelovanca, prereza AVC, njegove intenzitete ter hitrosti rezanja. Proces odvzemanja materiala vsebuje erozijo trdnih delcev in ga je zaradi kompleksnosti težko teoretično popisati. Posledično je bilo razvitih veliko modelov, ki skozi simuliranje procesa rezanja z AVC skušajo izboljšati poznavanje procesa. Glavni izziv predstavlja razviti model, ki dobro popisuje nastanek brazd, katerih nastanek želimo zmanjšatiTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaUniverza v Ljubljani, Fakulteta za strojništvo