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Numerično modeliranje dodajanja materiala z navarjanjem žice
ID Kovšca, Dejan (Author), ID Mole, Nikolaj (Mentor) More about this mentor... This link opens in a new window, ID Starman, Bojan (Co-mentor)

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Abstract
Tehnološki postopek izgraditve izdelkov po postopku oblikovnega navarjanja žice omogoča izdelavo geometrijsko zahtevnih izdelkov, pri čemer je v primerjavi s konvencionalnimi tehnologijami izkoristek materiala bistveno boljši. Da se določitev procesnih parametrov izdelave izdelkov po tem postopku ne bi opirala samo na metodo poskušanja, se je začel razvoj numeričnih modelov termo-mehanskega odziva izdelka, namenjenih izvedbi računalniške simulacije procesa. Tako lahko ocenimo primernost procesnih parametrov v virtualnem okolju. V okviru te magistrske naloge je obravnavan postopek numeričnega modeliranja oblikovnega dodajanja materiala z obločnim navarjanjem žice na podlagi metode končnih elementov (MKE) v programskem okolju SIMULIA Abaqus. Rezultati računalniške simulacije izdelave geometrijsko enostavnega izdelka so na koncu tudi eksperimentalno ovrednoteni.

Language:Slovenian
Keywords:numerično modeliranje, metoda končnih elementov, analiza termo-mehanskega problema, dodajanje materiala, dodajne tehnologije, obločno navarjanje žice
Work type:Master's thesis/paper
Typology:2.09 - Master's Thesis
Organization:FS - Faculty of Mechanical Engineering
Place of publishing:Ljubljana
Publisher:[D. Kovšca]
Year:2021
Number of pages:XXII, 62 str.
PID:20.500.12556/RUL-129121 This link opens in a new window
UDC:004.942:621.791.75(043.2)
COBISS.SI-ID:78088451 This link opens in a new window
Publication date in RUL:27.08.2021
Views:1003
Downloads:261
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Secondary language

Language:English
Title:Numerical modelling of material addition by wire welding
Abstract:
Wire arc welding-based additive manufacturing (WAAM) is a 3D printing technology for production of near-net-shape parts with complex geometry, where in comparison to conventional production technologies the efficiency of used material is significantly improved. Because the process itself involves thermo-mechanically complex physical phenomena, finite element-based virtual models are commonly employed to optimize the process parameters. This master's thesis presents advanced computational modelling of the WAAM process, based on the SIMULIA Abaqus software environment. By simulating and manufacturing a geometrically simple product, the results of the computer simulation are also experimentally assessed.

Keywords:numerical modelling, finite element method, thermo-mechanical analysis, material addition, additive manufacturing, wire arc welding

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