Wire + Arc Additive Manufacturing

Stewart Williams; Filomeno Martina; Adrian Addison; Jialuo Ding; Gonçalo Pardal; Paul A. Colegrove

doi:10.1179/1743284715y.0000000073

Abstract

Depositing large components (>10 kg) in titanium, aluminium, steel and other metals is possible using Wire + Arc Additive Manufacturing. This technology adopts arc welding tools and wire as feedstock for additive manufacturing purposes. High deposition rates, low material and equipment costs, and good structural integrity make Wire+Arc Additive Manufacturing a suitable candidate for replacing the current method of manufacturing from solid billets or large forgings, especially with regards to low and medium complexity parts. A variety of components have been successfully manufactured with this process, including Ti–6Al–4V spars and landing gear assemblies, aluminium wing ribs, steel wind tunnel models and cones. Strategies on how to manage residual stress, improve mechanical properties and eliminate defects such as porosity are suggested. Finally, the benefits of non-destructive testing, online monitoring and in situ machining are discussed.

Keywords

Materials scienceResidual stressAluminiumMetallurgyWeldingForgingMachiningRaw material

Affiliated Institutions

Cranfield University GB

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Publication Info

Year: 2015
Type: article
Volume: 32
Issue: 7
Pages: 641-647
Citations: 1632
Access: Closed

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APA Style

                            
                                
                                    Stewart Williams, 
                                
                                    Filomeno Martina, 
                                
                                    Adrian Addison
                                
                                et al.
                            
                            (2015). 
                            Wire + Arc Additive Manufacturing. 
                            Materials Science and Technology
                            , 32
                            (7)
                            , 641-647.
                            https://doi.org/10.1179/1743284715y.0000000073
                        

Identifiers

DOI: 10.1179/1743284715y.0000000073