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Spajanje aluminijastega čepa in termoplasta s tehniko kovičenja s trenjem
ID Škrabar, Haidi (Author), ID Klobčar, Damjan (Mentor) More about this mentor... This link opens in a new window, ID Pušavec, Franci (Comentor)

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Abstract
V transportni industriji si prizadevajo zmanjšati maso prevoznih sredstev. Manjša masa pripomore k zmanjšanju emisij toplogrednih plinov. Velik vpliv na maso imajo uporabljeni materiali. Težke kovine lahko tako zamenjamo z uporabo lažjih zlitin in polimernih materialov. S kombiniranjem več različnih materialov so nastale tako imenovane večmaterialne strukture. V diplomskem delu je predstavljena metoda spajanja s kovičenjem s trenjem in vplivi parametrov na nastale spoje. Uporabljena materiala sta aluminijeva zlitina 2024 in polietermid. Nastale spoje smo najprej pregledali z rentgensko tomografijo, nato pa smo izvedli še izvlečni preizkus. Rentgenska tomografija nam je dala vpogled v geometrijo spoja, izvlečni preizkus pa silo, pri kateri se je spoj porušil. Pri vzorcih, kjer smo vnesli večjo mehansko energijo, je prišlo do večjih globin sidranja čepa v polimer. Ti vzorci so dosegli tudi večje sile izvleka. Izkazalo se je, da sta najpomembnejša parametra sila trenja prve faze in čas prve faze. Višji vnos energije v prvi fazi se odraža v večji deformaciji čepa med varjenjem.

Language:Slovenian
Keywords:aluminij, PEI, kovičenje s trenjem, rentgenska tomografija, izvlečni preizkus, varjenje MIG
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FS - Faculty of Mechanical Engineering
Place of publishing:Ljubljana
Publisher:[H. Škrabar]
Year:2021
Number of pages:XXII, 50 str.
PID:20.500.12556/RUL-128120 This link opens in a new window
UDC:621.884:669.71:678(043.2)
COBISS.SI-ID:70933251 This link opens in a new window
Publication date in RUL:03.07.2021
Views:1469
Downloads:107
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Secondary language

Language:English
Title:Fritcion riveting of aluminium rivet and polymer
Abstract:
The transport industry is working to reduce weight of vehicles. Less weight helps to reduce greenhouse gas emissions. The materials used, have a high influence on weight. Heavy metals can thus be replaced using lighter alloys and polymeric materials. By combining several different materials, so called multi-material structures were created. This thesis presents the method of friction riveting and the effects of used parameters on the resulting joints. The materials used are aluminium alloy 2024 and polyethermide. The resulting joints were first examined by X-ray tomography, followed by a pullout test. X-ray tomography gave us an insight into the joint geometry while the pullout test resulted in force at which the joints broke. Samples produced with higher mechanical energy achieved greater anchoring depths of rivets into the polymetric base plates. These samples also achieved higher pullout forces. It turned out, that the most important parameters are friction force of the first phase and friction time of the first phase. Higher energy input in the first phase is reflected in greater deformation of the rivet during welding.

Keywords:aluminium, PEI, friction riveting, X-ray tomography, pullout test, MIG welding

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