Abstract
The application of wire and arc additive manufacturing to more complex structures can be accomplished if intersections can be generated without local variations in geometry, properties and microstructure. Here, the local modification of the deposition characteristic in the vicinity of the intersection is proposed. Consequently, higher building heights are feasible and further expansion of the technology’s field of application is enabled. Fabrication options for such structures are investigated using Al2319 alloy samples manufactured with a conventional and a modified welding characteristic. Furthermore, analysis of the intersections produced with the modified characteristic curve is carried out. The results show that the structure can be built without a limitation in height and unchanged characteristics regarding porosity, microstructure and hardness values. Therefore, the presented deposition strategy can be used for a wide range of future structures, as it increases the design freedom.
Data availability
The raw/processed data required to reproduce these findings cannot be shared at this time as the data also forms part of an ongoing study.
Code availability
Not applicable.
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Acknowledgements
The authors would like to thank M. Schnall and A. Birgmann for important preliminary works.
Funding
This work was partly funded by the Austrian Research Funding Association (FFG) within the programme “Mobilität der Zukunft” in the project “WHole-Battery” (FFG project no. 871546).
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Gudeljevic, M., Klein, T. Investigation of material characteristics of intersections built by wire and arc additive manufacturing using locally varying deposition parameters. Int J Adv Manuf Technol 116, 2021–2029 (2021). https://doi.org/10.1007/s00170-021-07548-8
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DOI: https://doi.org/10.1007/s00170-021-07548-8