Faculty of Mechanical Engineering, Lj. (FSLJ)
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Večstopenjski globoki vlek geometrijsko zahtevnega preoblikovanca : magistrsko delo magistrskega študijskega programa II. stopnje StrojništvoGregorčič, Rok, strojnikTradicionalni pristop načrtovanja postopkov preoblikovanja pločevine z globokim vlekom je temeljil na številnih praktičnih preizkusih in optimizacijah. V sodobnem času na pomenu pridobivajo numerični ... programi, ki omogočajo simulacijo preoblikovalnega procesa in preučevanje vplivov posameznih parametrov na lastnosti preoblikovanca. Prednost numeričnih programov je predvsem v možnosti preučevanja notranjih napetosti. V nalogi smo izdelali simulacijo večstopenjskega globokega vleka geometrijsko zahtevnega preoblikovanca. Z različnimi verzijami simulacije smo preverili vplive radija vlečne matrice, koeficienta trenja in sile držala pločevine na lastnosti izdelka. Pozornost smo namenili gubanju stene izdelka, do katere prihaja v proizvodnem procesu. Preverjali smo lego izbranih točk na vlečencu v diagramu mejnih deformacij za različne vrednosti parametrov. Primerjali smo pozicijo točk v koordinatnem sistemu, za prepoznavanje gubanja stene smo vpeljali nov kriterij. Največji vpliv na nastanek gub ima povečanje radija vlečne matrice. Pri spremembi sile držala pločevine je jasno nakazan trend ali pločevina bolj teži h gubanju ali tvorjenju razpok. Zmanjšanje koeficienta trenja na strani pestiča v obravnavanem primeru ne prinese bistvenih prednosti.Type of material - master's thesis ; adult, seriousPublication and manufacture - Ljubljana : [R. Gregorčič], 2018Language - slovenianCOBISS.SI-ID - 16478491
Author
Gregorčič, Rok, strojnik
Other authors
Pepelnjak, Tomaž
Topics
magistrske naloge |
večstopenjski globoki vlek |
preoblikovanje pločevine |
numerične simulacije |
elipsoid |
napake |
orodje |
multi-stage deep drawing |
metal forming |
numerical simulations |
ellipsoid |
defects |
forming tool
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Database name | Field | Year |
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Gregorčič, Rok, strojnik | ![]() |
Pepelnjak, Tomaž | 12957 |
Source: Personal bibliographies
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