DOI: 10.14393/ufu.di.2018.574
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Exploring Solutions to Mitigate Unidirectional Grain Growth and to Set Operational Envelop for Wire + Arc Additive Manufacturing of Aluminium Alloys

Abstract: Wire Arc Additive Manufacturing (WAAM) is a novel process with high industrial application. However, there are still some limitations, such as anisotropy of mechanical properties, which delays a wide implementation of WAAM. Moreover, as long as WAAM is a new technology, its operational envelope is not utterly known. The first objective of this work was to assess solutions to mitigate unidirectional grain growth in WAAM of aluminium, that leads to anisotropy of the mechanical properties of the printed part. In … Show more

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“…In the literature, a substantial work on AM of aluminium alloys with PBF-Laser technique shows that all types of aluminium alloys are printable using this particular process [16]. In contrast, recent studies on WAAM show that only specific 2XXX [17][18][19][20][21][22][23][24][25], 4XXX [26][27][28][29][30] and 5XXX [20,22,27,28,[30][31][32][33][34][35][36] series can be successfully deposited. Thus, an upstream development is absolutely required to obtain WAAM-built parts using 6XXX and 7XXX series of aluminium alloys [37,38].…”
Section: Introductionmentioning
confidence: 99%
“…In the literature, a substantial work on AM of aluminium alloys with PBF-Laser technique shows that all types of aluminium alloys are printable using this particular process [16]. In contrast, recent studies on WAAM show that only specific 2XXX [17][18][19][20][21][22][23][24][25], 4XXX [26][27][28][29][30] and 5XXX [20,22,27,28,[30][31][32][33][34][35][36] series can be successfully deposited. Thus, an upstream development is absolutely required to obtain WAAM-built parts using 6XXX and 7XXX series of aluminium alloys [37,38].…”
Section: Introductionmentioning
confidence: 99%