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Optimizacija procesa večstopenjskega vročega kovanja : zaključna naloga Univerzitetnega študijskega programa I. stopnje StrojništvoKuštra, MitjaDiplomska naloga izhaja iz izdelka, narejenega za potrebe udeležbe na mednarodnem tekmovanju International Students Olympiad in Hot Bulk Forging technologies of 2018, na katerem je bilo treba ... izdelati geometrijo vroče kovanega izdelka, ki bi čim boljše izpolnjeval zahtevane parametre. Glavni tehnološki proces je kovanje v utopih. Vrednotenje je potekalo v programskem okolju QForm 3D, ki obsega dvodimenzionalne simulacije kovanja z uporabo končnih elementov. Na podlagi rezultatov, ki so bili pridobljeni v času tekmovanja, se je nato izvedla še optimizacija izdelka, s ciljem čim višje porabe materiala ter zadovoljive življenjske dobe orodja. Končen rezultat je bila ustrezna geometrija orodja z dovoljšno življenjsko dobo ob 68,5% izkoristku materiala. Ta rezultat je bil pridobljen ob smiselni spremembi geometrije, ki ni sledila smernicam standardov DIN 7523 ter EN DIN 10243. Pomembno je vplivala pravilna izbira maziva, uporaba ponovnega gretja med postopki kovanja, ter uporaba sestavljenega orodja, ki je pripomoglo k prednapetju samega orodja. Zelo pomembna pa je bila tudi zasnova nakrčevanja, ki je odločilno prispevala k izboljšanju življenjske dobe orodja.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [M. Kuštra ], 2018Language - slovenianCOBISS.SI-ID - 16246299
Author
Kuštra, Mitja
Other authors
Pepelnjak, Tomaž
Topics
diplomske naloge |
optimizacija |
kovanje v utopih |
napovedi življenjske dobe orodja |
QForm |
simulacije |
optimisation |
closed-die forging |
tool life time prediction |
QForm |
simulations
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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Kuštra, Mitja | |
Pepelnjak, Tomaž | 12957 |
Source: Personal bibliographies
and: SICRIS
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