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Advanced computational modelling of metallic wire-arc additive manufacturing
ID
Kovšca, Dejan
(
Avtor
),
ID
Starman, Bojan
(
Avtor
),
ID
Ščetinec, Aljaž
(
Avtor
),
ID
Klobčar, Damjan
(
Avtor
),
ID
Mole, Nikolaj
(
Avtor
)
PDF - Predstavitvena datoteka,
prenos
(1,10 MB)
MD5: 5EE35E00E74CC09B6EF39833F1978767
URL - Izvorni URL, za dostop obiščite
https://popups.uliege.be/esaform21/index.php?id=2340
Galerija slik
Izvleček
Wire-arc welding-based additive manufacturing (WAAM) is a 3D printing technology for production of near-net-shape parts with complex geometry. This printing technology enables to build up a required shape layer by layer with a deposition of a consumable welding wire, where the welding arc is a source of heat. Welding is usually performed by CNC-controlled robotic manipulator, which provides a controlled location of material layer adding. Because the process itself involves thermo-mechanically complex phenomena, Finite Element-based virtual models are commonly employed to optimize the process parameters. This paper presents advanced computational modelling of the WAAM of a tube. A thermo-mechanical numerical model of the process is calibrated against experimental data, measured as temperature variation at the acquisition point. The virtual modelling starts with a preparation of the tube geometry in CAD software, where the geometry of the single-layer cross-section is assumed. The geometry is then exported to a G-code format data file and used to control robotic manipulator motion. On the other side, the code serves as an input to in-house developed code for automatic FEs activation in the simulation of the material layer-adding process. The time of activation of the finite elements (FEs) is directly related to the material deposition rate. The activation of the FEs is followed by a heat source, modeled with a double ellipsoidal power density distribution. The thermo-mechanical problem was solved as uncoupled to speed-up computation.
Jezik:
Slovenski jezik
Ključne besede:
wire-arc additive manufacturing
,
multi-pass welding
,
computer simulation
,
thermo-mechanical numerical model
,
finite element method
Tipologija:
1.08 - Objavljeni znanstveni prispevek na konferenci
Organizacija:
FS - Fakulteta za strojništvo
Status publikacije:
Objavljeno
Različica publikacije:
Objavljena publikacija
Datum objave:
28.03.2021
Leto izida:
2021
Št. strani:
Str. 1-11
Številčenje:
art. 2340
PID:
20.500.12556/RUL-126860
UDK:
004.942:621.9.04(045)
DOI:
10.25518/esaform21.2340
COBISS.SI-ID:
63316227
Datum objave v RUL:
06.05.2021
Število ogledov:
1830
Število prenosov:
260
Metapodatki:
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Objavi na:
Gradivo je del monografije
Naslov:
24th International Conference on Material Forming, Liège, Belgium, 14 - 16 April, 2021 : ESAFORM 2021
Uredniki:
Anne Marie Habraken
Kraj izida:
Liège
Založnik:
AIM
Leto izida:
2021
COBISS.SI-ID:
62587395
Licence
Licenca:
CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:
http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:
To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
Začetek licenciranja:
29.03.2021
Sekundarni jezik
Jezik:
Angleški jezik
Ključne besede:
oblikovno obločno navarjanje z žico
,
večkratno navarjanje
,
računalniška simulacija
,
termo-mehanski numerični model
Projekti
Financer:
ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:
P2-0263
Naslov:
Mehanika v tehniki
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