Effect of the Metal Transfer Mode on the Symmetry of Bead Geometry in WAAM Aluminum

Thumbnail Image
Files
symmetry-13-01245-v4.pdf (2.55 MB)
Identifiers
ISSN: 2073-8994
DOI: 10.3390/sym13071245
Publication date
2021-07-10
Authors
Advisors
Journal Title
Journal ISSN
Volume Title
Publisher
Citations
Google Scholar
Export
Research Projects
Organizational Units
Journal Issue
Abstract
The symmetrical nature in the case of wall fabrication by wire arc additive manufacturing (WAAM) has been observed in the literature, but it has not been studied as a source of knowledge. This paper focuses on the comparative study of three drop transfer methods employing Gas Metal Arc Welding (GMAW) technology, one of the most reported for the manufacture of aluminum alloys. The transfer modes studied are the well-known pulsed GMAW, cold arc, and the newer pulsed AC. The novelty of the last transfer mode is the reversal of the polarity during the preparation phase of the substance for droplet deposition. This study compares the symmetry of zero beads to determine the best parameters and transfer modes for wire arc additive manufacturing of 5 series aluminum. The pulsed transfer modes show values of 0.6 for symmetry ratio, which makes them more interesting strategies than cold arc with a symmetry ratio of 0.5. Furthermore, the methodology proposed in this study can be extrapolated to other materials manufactured with this technology.
Description
Publisher Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
Keywords
Direct energy deposition , Wall geometry , Additive manufacturing monitoring , Direct energy deposition , Wall geometry , Additive manufacturing monitoring , Computer Science (miscellaneous) , Chemistry (miscellaneous) , General Mathematics , Physics and Astronomy (miscellaneous) , SDG 9 - Industry, Innovation, and Infrastructure , Funding Info , The authors acknowledge the Basque Government for financing the HARIPLUS, HAZITEK 2019 program (ZL-2019/00352), and QUALYFAM project (kk-2020/00042). , The authors acknowledge the Basque Government for financing the HARIPLUS, HAZITEK 2019 program (ZL-2019/00352), and QUALYFAM project (kk-2020/00042).
Type
journal article
Citation
Veiga , F , Suárez , A , Aldalur , E & Bhujangrao , T 2021 , ' Effect of the Metal Transfer Mode on the Symmetry of Bead Geometry in WAAM Aluminum ' , Symmetry , vol. 13 , no. 7 , 1245 , pp. 1245 . https://doi.org/10.3390/sym13071245