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Vpliv frekvence laserskih bliskov na trdoto navara : diplomska naloga univerzitetnega študijaVraničar, MaticV diplomskem delu so raziskani vplivi frekvence, dodajnega materiala, osnovnega materiala in konfiguracije navarjanja na trdoto laserskega navara. Navarjali smo s frekvenco 7 in 14 Hz, z dodajnima ... materialoma DIEVAR in G4, na kaljen in toplotno neobdelan osnovni material UTOP MO1 ter s tremi različnimi konfiguracijami navarjanja. Konfiguracije so bile sestavljene iz enega, štirih in šestih varkov. V teoretičnem delu diplome so opisani fizikalni in kemični procesi, ki vplivajo na trdoto navara, osnove metalografije in metalografskih preiskav, splošni pregled varjenja, merjenje trdote in delovanje laserja. V praktičnem delu naloge so prikazani parametri varjenja, uporabljeni materiali, uporabljena oprema in postopki dela ter potek meritev trdote. Rezultati so prikazani na slikah vzorcev, v grafih in preglednicah, narejena pa je tudi njihova analiza. Po analizi rezultatov smo ugotovili, da nižja frekvenca pomeni nižjo trdoto navara, trdota pa je nižja tudi pri dodajnem materialu z nižjo vsebnostjo ogljika ter pri kaljenem osnovnem materialu. Ugotovili smo tudi, da pri konfiguraciji s štirimi in šestimi varki in frekvenco 14 Hz pride do popuščanja vseh varkov razen zadnjega, ki pa dosega precej višjo trdoto od ostalih. Izkazalo se je, da lahko z optimalno izbranimi parametri naredimo navar, ki je le 5% trši od osnovnega materiala.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [M. Vraničar], 2016Language - slovenianCOBISS.SI-ID - 14614555
Author
Vraničar, Matic
Other authors
Tušek, Janez, 1952-
Topics
diplomske naloge |
laserji |
lasersko navarjanje |
trdota |
frekvenca |
orodna jekla |
reparaturno varjenje |
laser |
laser clad welding |
hardness |
frequency |
tool steel |
repair welding
Library | Call number – location, accession no. ... | Copy status |
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Faculty of Mechanical Engineering, Lj. | U 6356 IN: 40006356 |
available - reading room |
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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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Vraničar, Matic | |
Tušek, Janez, 1952- | 02045 |
Source: Personal bibliographies
and: SICRIS
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