The similarities between additive manufacturing (AM) and fusion welding have made Science and Technology of Welding and Joining an appropriate venue to discuss the recent progress made in AM. This special issue highlights significant recent progress in AM towards inventing new processes, developing novel materials, improving microstructure, achieving unique mechanical properties, and reducing defects. Furthermore, it identifies the modern tools of the digital age such as mechanistic modelling, machine learning, and digital twin as powerful drivers of this progress. The articles in this special issue are also believed to identify research needs and opportunities for the AM community.
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DebRoyT, MukherjeeT, WeiHL, . Metallurgy, mechanistic models and machine learning in metal printing. Nat Rev Mater. 2021;6(1):48–68. doi:10.1038/s41578-020-00236-1
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WeiHL, MukherjeeT, ZhangW, . Mechanistic models for additive manufacturing of metallic components. Prog Mater Sci. 2021;116:100703. doi:10.1016/j.pmatsci.2020.100703
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DebRoyT, WeiHL, ZubackJS, . Additive manufacturing of metallic components–process, structure and properties. Prog Mater Sci. 2018;92:112–224. doi:10.1016/j.pmatsci.2017.10.001
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MukherjeeT, ElmerJW, WeiHL, . Control of grain structure, phases, and defects in additive manufacturing of high-performance metallic components. Prog Mater Sci. 2023;138:101153. doi:10.1016/j.pmatsci.2023.101153
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TunayM, BaykasoğluC, AkyildizO, . A fully coupled thermal–microstructural–mechanical finite element process model for directed energy deposition additive manufacturing of Ti–6Al–4 V. Sci Technol Weld Joining. 2023;28(2):118–127. doi:10.1080/13621718.2022.2127211
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WuQ, TangW, YangJ, . Comparison of thermomechanical responses of single-arc and dual-arc parallel additive manufacturing. Sci Technol Weld Joining. 2023;28:580–588. doi:10.1080/13621718.2023.2219909
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NovotnýL, BérešM, CarpentieriB.Effect of interlayer time interval on residual stress distribution in Ti6Al4V alloy manufactured by laser powder bed fusion. Sci Technol Weld Joining. 2023;28:514–524. doi:10.1080/13621718.2023.2184105
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ChenyangW, FeiX, GuojianX, . Ta/Cu transition region in TC4/Inconel718 bimetallic structure fabricated by laser deposition manufacturing. Sci Technol Weld Joining. 2023;28:200–208. doi:10.1080/13621718.2022.2143095
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YuanT, ZhaoX, ShanH, . Microcosmic mechanism of performance enhancement of wire arc additive manufactured Al-Zn-Mg-Cu alloy based on heat treatment. Sci Technol Weld Joining. 2023;28:569–579. doi:10.1080/13621718.2023.2209420
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KumarA, SarmaR, BagS, . Physics-informed machine learning models for the prediction of transient temperature distribution of ferritic steel in directed energy deposition by cold metal transfer. Sci Technol Weld Joining. 2023. doi: 10.1080/13621718.2023.2247242.
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ZhangX, ZhaoW, LongJ, . Influence of assisted longitudinal magnetic field on the microstructure and mechanical properties of ER2319 aluminium alloy parts fabricated by wire and arc additive manufacturing. Sci Technol Weld Joining. 2023;28(3):218–225. doi:10.1080/13621718.2022.2145419
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PrasadAK, KapilS, BagS.Tailoring coil geometry for secondary heating of substrate towards the development of induction heating-based wire additive manufacturing. Sci Technol Weld Joining. 2023;28(3):209–217. doi:10.1080/13621718.2022.2144800
UlkirO, AkgunG.Predicting and optimising the surface roughness of additive manufactured parts using an artificial neural network model and genetic algorithm. Sci Technol Weld Joining. 2023;28:548–557. doi:10.1080/13621718.2023.2200572
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RodriguesTA, Cipriano FariasFW, AvilaJA, . Effect of heat treatments on inconel 625 fabricated by wire and arc additive manufacturing: an in situ synchrotron X-ray diffraction analysis. Sci Technol Weld Joining. 2023;28:534–539. doi:10.1080/13621718.2023.2187927
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WuD, XuY, LiW, . Process optimisation of cold spray additive manufacturing of FeCoNiCrMn high-entropy alloy. Sci Technol Weld Joining. 2023;28:540–547. doi:10.1080/13621718.2023.2190264
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ŠčetinecA, KlobčarD, NagodeA, . Optimisation of precipitation hardening for 15-5 PH martensitic stainless steel produced by wire arc directed energy deposition. Sci Technol Weld Joining. 2023;28:558–568. doi:10.1080/13621718.2023.2202979
LiB, ChenX, JiangM, . Microstructure and mechanical properties of TiC nanoparticles reinforced 7075 aluminium alloy fabricated by oscillating laser-arc hybrid additive manufacturing. Sci Technol Weld Joining. 2023;28:495–505. doi:10.1080/13621718.2023.2182485
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DaiH, ZhangE, MiaoJ, . Arc additive remanufacturing of a new type of Al–Cu–Ni aviation case: microstructure and high-temperature properties under T6 heat treatment. Sci Technol Weld Joining. 2023;28:506–513. doi:10.1080/13621718.2023.2183330
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ChaurasiaPK, GoeckeSF, DeA.Monitoring melt pool asymmetry in gas metal arc-directed energy deposition. Sci Technol Weld Joining. 2023;28:424–432. doi:10.1080/13621718.2023.2168933
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WangY, ChenJ, ChenM, . Process stability and forming accuracy on wire arc additive manufactured Al–Zn–Mg–Cu alloy with different electrode positive/electrode negative ratios of CMT advance process. Sci Technol Weld Joining. 2023;28:352–361. doi:10.1080/13621718.2022.2162712
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TuduN, BaruahM, Bhushan PrasadS.Study of laser directed energy deposition of inconel 625 and austenitic steel. Sci Technol Weld Joining. 2023;28:287–297. doi:10.1080/13621718.2022.2156715
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DebRoyT, MukherjeeT, MilewskiJO, . Scientific, technological and economic issues in metal printing and their solutions. Nat Mater. 2019;18:1026–1032. doi:10.1038/s41563-019-0408-2
