diplomsko delo Visokošolskega strokovnega študijskega programa I. stopnje Strojništvo
Povzetek
V diplomskem delu smo prikazali varjenje dveh bakrenih zlitin Cu-HCP (CW0021A/C10300) in Cu-ETP (CW004A/C11000). Podrobneje smo opisali kemijsko sestavo bakra in opisali njegove fizikalne lastnosti. Na kratko smo podali opis legiranja bakra z drugimi elementi in nastanek zlitin po legiranju. Podrobneje smo opisali še zlitine, ki smo jih uporabili pri varjenju. Opisali in prikazali smo dva postopka varjenja, ki smo ju uporabili pri raziskovanju. To sta bila varjenje z gnetenjem in varjenje TIG, ki smo ju shematsko prikazali in popisali. Iz izdelanih zvarnih spojev smo izdelali makroobruse in vzorce za natezni preizkus. Za varjenje smo uporabili dva različna osnovna materiala, in sicer zato, ker smo uporabili dva različna postopka varjenja. Zato smo pri talilnem varjenju TIG izbrali baker, ki vsebuje fosfor, da se je kisik med procesom vezal na fosfor in zgorel. Pri varjenju FSW ne prihaja do taljenja materiala, saj se material segreje le do testastega stanja. Ugotovili smo, da vzorci zvarjeni po postopku varjenja z gnetenjem zdržijo manjše natezne napetosti kot vzorci varjeni s TIG. Izkazalo se je da, bi se ob uporabi primernejšega varilnega orodja kakovost zvara pri varjenju z gnetenjem povečala. Prav tako pride do razlik v mikrostrukturi zvarjenih kosov, ker pri talilnem varjenju vnesena temperatura vpliva na spremembo mikrostrukture osnovnega materiala in zvarnega spoja.
Ključne besede
diplomske naloge;materiali;zlitine;varjenje TIG;varjenje z gnetenjem;natezni test;mikroskopija;
Podatki
Jezik: |
Slovenski jezik |
Leto izida: |
2021 |
Tipologija: |
2.11 - Diplomsko delo |
Organizacija: |
UL FS - Fakulteta za strojništvo |
Založnik: |
[J. Žnidaršič] |
UDK: |
621.791.75:669.35(043.2) |
COBISS: |
52457219
|
Št. ogledov: |
394 |
Št. prenosov: |
126 |
Ocena: |
0 (0 glasov) |
Metapodatki: |
|
Ostali podatki
Sekundarni jezik: |
Angleški jezik |
Sekundarni naslov: |
FSW welding of copper |
Sekundarni povzetek: |
In my thesis, I presented welding of two copper alloys, Cu-HCP (CW0021A/C10300) and Cu-ETP (CW004A/C11000). I made a detailed chemical study of copper and outlined its physical properties. I briefly described alloying with other elements and the creation of alloys after the alloying process. I detailed the description of alloys, which were used in the welding process. I described and presented two welding processes, used in the research. These two processes were Friction Stir Welding (FSW) and the TIG welding process, both of which were described and schematically displayed. From welded joints, we made macrosections and samples for a tensile test. Since two different welding processes were carried out, two different materials were used. At the TIG welding, we selected a material that contains phosphorus as it binds to oxygen. At FSW material does not melt, because the temperature is not high enough. We found out that the samples welded by the FSW endures lower tensile stresses than a TIG welded samples. It turned out that using a more suitable welding tool would increase the quality of the weld during a FSW. There are also differences in the microstructure of the welded pieces, because the temperature is higher during a fusion welding. Higher temperature effect on changes in the microstructure of the base material and the welded joint. |
Sekundarne ključne besede: |
thesis;material;alloy;TIG welding;friction stir welding;tensile test;microscopic analysis; |
Vrsta dela (COBISS): |
Diplomsko delo/naloga |
Študijski program: |
0 |
Konec prepovedi (OpenAIRE): |
1970-01-01 |
Komentar na gradivo: |
Univ. v Ljubljani, Fak. za strojništvo |
Strani: |
XVII, 58 str. |
ID: |
12404647 |