Abstract
Wire + arc additive manufacture (WAAM) is a new process for fabricating large-scale metallic components. In this paper, the use of cold metal transfer-based WAAM process for the production of maraging steel bulk material is reported. Process parameters were studied, and the effect of building strategies including oscillation, parallel and weaving on bead shape was investigated. The structural integrity of the WAAM bulk material regarding the surface finish, lack-of-fusion issue and microstructure was characterized. Results proved the feasibility of applying WAAM to producing maraging steel bulk material, and weaving was identified to be most recommended building strategy.
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The authors wish to acknowledge the financial support from China Scholarship Council (No. 201506680057) and the WAAMMat program industrial partners.
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This article is an invited paper selected from presentations at the symposium “Additive Manufacturing of Metals: Microstructure and Material Properties,” held during MS&T’17, October 8-12, 2017, in Pittsburgh, Pa., and has been expanded from the original presentation.
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Xu, X., Ding, J., Ganguly, S. et al. Preliminary Investigation of Building Strategies of Maraging Steel Bulk Material Using Wire + Arc Additive Manufacture. J. of Materi Eng and Perform 28, 594–600 (2019). https://doi.org/10.1007/s11665-018-3521-5
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DOI: https://doi.org/10.1007/s11665-018-3521-5