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Nadgradnja sistema za mazanje/hlajenje odrezovalnega procesa na princip podhlajenega minimalnega mazanja : MQL -Minimum Quantitiy Lubrication : diplomska naloga visokošolskega strokovnega študijskega programa I. stopnje strojništvoPetrin, UrbanTehnologija mazanja in hlajenja v odrezovalnih procesih, se je skozi leta izpopolnjevala. Današnji trend ekološke osveščenosti želi biti prisoten v vseh večjih in manjših podjetjih, zato narašča tudi ... uporaba ekoloških hladilno mazalnih sredstev, ki nimajo velikega vpliva na okolje. Hladilno mazalna tekočina mora v procesu odrezavanja odvajati toploto iz rezalne cone ter zmanjšati trenje med orodjem in obdelovancem. V diplomi smo raziskovali tip hlajenja na principu Minimum Quantity Lubrication oziroma MQL. V sistemih MQL je medij zrak mešan z oljem, v našem primeru pa smo tega nadomestil s podhlajenim dušikom v plinastem stanju. Menjavo zraka z dušikom smo uporabili zaradi doseganja temperatur pod nič stopinj Celzija, kar bi izboljšalo hladilne lastnosti sistema MQL. Prvi korak je bila postavitev sistema za mazanje. Sledilo je definiranje optimalnih parametrov rezanja in tehnoloških oken. Z optimalnimi parametri je bila merjena obraba pri različnih tipih mazanja. Uporabljeni so bili štirje tipi mazanja. Z analizo odrezkov, hrapavosti ter rezalnih sil smo prišli do končnih rezultatov. Hrapavost je bila pod zastavljeno mejo, rezalne sile so bile v vseh načinih mazanja v istih mejah. Analiza odrezkov je pokazala slabšanje odrezkov z dolžino struženje. Analiza obstojnosti orodja je na sistemu s podhlajenim dušikom pokazala precej daljšo obstojnost orodja.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [U. Petrin], 2013Language - slovenianCOBISS.SI-ID - 13110299
Author
Petrin, Urban
Other authors
Pušavec, Franci |
Kopač, Janez, 1949-
Topics
diplomske naloge |
MQL minimalno mazanje |
hladilno mazalne tekočine |
utekočinjen dušik |
odrezovalni procesi |
obstojnost orodja |
minimum quantitiy lubrication |
metal working fluids |
liquid nitrogen |
cutting processes |
tool life
Library/institution |
City | Acronym | For loan | Other holdings |
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Faculty of Mechanical Engineering, Ljubljana | Ljubljana | FSLJ |
reading room 1 cop.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Petrin, Urban | |
Pušavec, Franci | 26559 |
Kopač, Janez, 1949- | 06883 |
Source: Personal bibliographies
and: SICRIS
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