Faculty of Mechanical Engineering, Lj. (FSLJ)
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Varjenje z gnetenjem aluminijeve zlitine 7075 : diplomska naloga visokošolskega strokovnega študijskega programa I. stopnje strojništvoHmeljak, Arjan.Varjenje aluminija je teţavno opravilo, saj njegove fizikalne lastnosti niso naklonjene vsem postopkom spajanja. Varjenje z gnetenjem je termomehanski postopek, pri katerem so temperature niţje kot ... pri klasičnih obločnih postopkih, pritisna sila pa še dodatno izboljša mehanske lastnosti zvara, zato je zelo primeren postopek za varjenje aluminija. V delu smo preučili vpliv različnih vrtilnih in podajalnih hitrosti na mehanske lastnosti ter mikrostrukturo varjene aluminijeve zlitine 7075. Varili smo po sistemu matrike s parametri 1180, 950 in 750 vrt/min in podajanji 116, 93 in 73 mm/min. Za zvar pri vsakem parametru smo naredili analizo natezne trdnosti, raztezka, trdote, upogibnega kota, temperatur in analizirali mikrostrukturo zvara. Ugotovili smo, da je pri niţji vneseni toploti od 6,5 do 10,2 vrt/mm, ob niţjih vrtljajih in višji hitrosti podajanja od 93 mm/min do 116 mm/min pri vrtljajih 950 vrt/min in podajanjem 116 mm/min pri vrtljajih 750 vrt/min kakovost zvara boljša kot pri višji vneseni toploti ob višjih vrtljajih in niţji hitrosti podajanja.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [A. Hmeljak], 2016Language - slovenianCOBISS.SI-ID - 14839067
Author
Hmeljak, Arjan
Other authors
Klobčar, Damjan |
Golobič, Iztok
Topics
diplomske naloge |
varjenje z gnetenjem |
aluminijeva zlitina 7075 |
mikrostruktura |
merjenje temperature |
natezni test |
friction stir welding |
aluminium alloy 7075 |
temperature measurement |
microstructure |
tensile test
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VS 0000000306 IN: 60000306 VS 306 IN: 60000306 |
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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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Hmeljak, Arjan | |
Klobčar, Damjan | 20441 |
Golobič, Iztok | 05566 |
Source: Personal bibliographies
and: SICRIS
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