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Fenomenološko modeliranje obdelave z lednim abrazivnim vodnim curkom v industrijskih procesih rezanja : doktorsko delo
Jerman, Marko, strojnik
Kadar pri postopku obdelave z abrazivnim vodnim curkom (AVC) mineralni abraziv zamenjamo z ledenimi zrni, ustvarimo ledni abrazivni vodni curek (LAVC). Glavna prednost tehnologije je čistost postopka ...in nizke temperature obdelave. V okviru disertacije smo razvijali prototip stroja za obdelavo z LAVC in na različnih stopnjah razvoja prototipa na njem izvajali eksperimente, s katerimi smo popisovali fenomene procesa. Na ta način smo določevali mesta segrevanja vode v sistemu in merili, kako ohlajanje vode vpliva na učinkovitost in kakovost obdelave z vodnim curkom. Na podlagi rezultatov smo z metodo dimenzijske analize postavili semi-empirični model za napovedovanje učinkovitosti in kakovosti obdelave z upoštevanjem temperature curka. Z uporabo numerične analize smo ugotavljali temperaturne razmere znotraj vodne šobe, na podlagi katerih smo sklepali o temperaturnih pogojih, katerim so izpostavljena ledena zrna. Model smo validirali s pomočjo eksperimentov in literature. V sklopu raziskav smo razvili optično metodo za zasledovanje razpada vodnega curka, na podlagi katere smo ocenjevali vpliv spreminjanja parametrov na kakovost curka. Izdelali smo napravo za izdelavo ledenih zrn, ki smo jih uporabili kot abraziv. Na podlagi raziskav smo izdelali prototip stroja za rezanje z LAVC in izvedli prve poskuse rezanja.
Type of material - dissertation
; adult, serious
Publication and manufacture - Ljubljana : [M. Jerman], 2016
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