Study of the WAAM-CMT process for ER70S steel: Influence of the main parameters on the morphology of single tracks
Eleonora Viola, Alessia Teresa Silvestri, Andrea El Hassanin, Antonino Squillace
Abstract. Wire Arc Additive Manufacturing (WAAM) is an emerging technology that enables the production of high-integrity, semifinished metallic components using both conventional and ad-hoc welding machines. However, such a technology presents some challenges, mainly related to obtaining optimal deposition parameters. This experimental study investigated the impact of wire feed speed (WFS) and travel speed (TS) on the geometric properties of WAAM-CMT deposited ER70S single-tracks. The bead width (W) and height (H) were analyzed as response variables. Experimental results revealed that increasing WFS significantly increased both W and H, while increasing TS reduced them. Statistical analysis confirmed the significance of both WFS and TS for W, while only WFS significantly influenced H. These findings highlight the critical role of process parameters in optimizing WAAM geometry, paving the way for enhanced quality in additively manufactured components.
Keywords
Wire Arc Additive Manufacturing, Cold Metal Transfer, Dimensional Accuracy, Statistical Analysis
Published online 5/7/2025, 8 pages
Copyright © 2025 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Eleonora Viola, Alessia Teresa Silvestri, Andrea El Hassanin, Antonino Squillace, Study of the WAAM-CMT process for ER70S steel: Influence of the main parameters on the morphology of single tracks, Materials Research Proceedings, Vol. 54, pp 135-142, 2025
DOI: https://doi.org/10.21741/9781644903599-15
The article was published as article 15 of the book Material Forming
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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