Abstract
Coaxial wire-based laser metal deposition is a versatile and efficient additive process that can achieve a high deposition rate in the manufacturing of complex structures. In this paper, a three-beam coaxial wire system is studied, with particular attention given to the effects of the deposition direction and laser beam orientation on the resulting bead geometry symmetry. With the three-beam laser delivery, the laser spot pattern is not always symmetric with respect to the deposition direction. Single titanium beads are deposited in different directions and at varying deposition rates, and the bead profile is quantitatively scored for multiple symmetry measures. Through an analysis of variance, the deposition direction and deposition rate were found to be insignificant with respect to the resulting bead symmetry for the developed measures. The bead symmetry and geometry are important factors in determining if a build is free of critical defects, and in this study, it is shown that the three-beam coaxial wire deposition setup is a directionally independent process.
Recommended Citation
R. Mathenia et al., "A Study of Directionality Effects in Three-Beam Coaxial Titanium Wire-Based Laser Metal Deposition," Materials, vol. 17, no. 13, article no. 3201, MDPI, Jul 2024.
The definitive version is available at https://doi.org/10.3390/ma17133201
Department(s)
Mechanical and Aerospace Engineering
Publication Status
Open Access
Keywords and Phrases
bead geometry; defocusing; three-beam coaxial laser; wire deposition
International Standard Serial Number (ISSN)
1996-1944
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2024 The Authors, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution 4.0 License.
Publication Date
01 Jul 2024
