Joint integrity evaluation of laser beam welded additive manufactured Ti6Al4V sheets

P. O. Omoniyi; Rasheedat Modupe Mahamood; N. Arthur; S. Pityana; S. Skhosane; Y. Okamoto; T. Shinonaga; M. R. Maina; T. C. Jen; E. T. Akinlabi

doi:10.1038/s41598-022-08122-2

Joint integrity evaluation of laser beam welded additive manufactured Ti6Al4V sheets

P. O. Omoniyi^*, Rasheedat Modupe Mahamood, N. Arthur, S. Pityana, S. Skhosane, Y. Okamoto, T. Shinonaga, M. R. Maina, T. C. Jen, E. T. Akinlabi

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

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Abstract

The feasibility of joining laser metal deposited Ti6Al4V sheets using laser beam welding was investigated in this article. The additive manufactured sheets were joined using a 3 kW CW YLS-2000-TR ytterbium laser system. The mechanical properties and microstructure of the welded additive manufactured parts (AM welds) were compared with those of the wrought sheets welded using the same laser process. The welds were characterized and compared in terms of bead geometry, microhardness, tensile strength, fractography, and microstructure. The differences in characteristics are majorly found in the width of the bead and tensile strength. The bead width of AM welds appear wider than the wrought welds, and the wrought welds exhibited higher tensile strength and ductility than the AM welds.

Original language	English
Article number	4062
Number of pages	9
Journal	Scientific Reports
Volume	12
Issue number	1
DOIs	https://doi.org/10.1038/s41598-022-08122-2
Publication status	Published - 8 Mar 2022
Externally published	Yes

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s41598-022-08122-2Final published version, 1.94 MBLicence: CC BY

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title = "Joint integrity evaluation of laser beam welded additive manufactured Ti6Al4V sheets",

abstract = "The feasibility of joining laser metal deposited Ti6Al4V sheets using laser beam welding was investigated in this article. The additive manufactured sheets were joined using a 3 kW CW YLS-2000-TR ytterbium laser system. The mechanical properties and microstructure of the welded additive manufactured parts (AM welds) were compared with those of the wrought sheets welded using the same laser process. The welds were characterized and compared in terms of bead geometry, microhardness, tensile strength, fractography, and microstructure. The differences in characteristics are majorly found in the width of the bead and tensile strength. The bead width of AM welds appear wider than the wrought welds, and the wrought welds exhibited higher tensile strength and ductility than the AM welds.",

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AU - Omoniyi, P. O.

AU - Mahamood, Rasheedat Modupe

AU - Arthur, N.

AU - Pityana, S.

AU - Skhosane, S.

AU - Okamoto, Y.

AU - Shinonaga, T.

AU - Maina, M. R.

AU - Jen, T. C.

AU - Akinlabi, E. T.

PY - 2022/3/8

Y1 - 2022/3/8

N2 - The feasibility of joining laser metal deposited Ti6Al4V sheets using laser beam welding was investigated in this article. The additive manufactured sheets were joined using a 3 kW CW YLS-2000-TR ytterbium laser system. The mechanical properties and microstructure of the welded additive manufactured parts (AM welds) were compared with those of the wrought sheets welded using the same laser process. The welds were characterized and compared in terms of bead geometry, microhardness, tensile strength, fractography, and microstructure. The differences in characteristics are majorly found in the width of the bead and tensile strength. The bead width of AM welds appear wider than the wrought welds, and the wrought welds exhibited higher tensile strength and ductility than the AM welds.

AB - The feasibility of joining laser metal deposited Ti6Al4V sheets using laser beam welding was investigated in this article. The additive manufactured sheets were joined using a 3 kW CW YLS-2000-TR ytterbium laser system. The mechanical properties and microstructure of the welded additive manufactured parts (AM welds) were compared with those of the wrought sheets welded using the same laser process. The welds were characterized and compared in terms of bead geometry, microhardness, tensile strength, fractography, and microstructure. The differences in characteristics are majorly found in the width of the bead and tensile strength. The bead width of AM welds appear wider than the wrought welds, and the wrought welds exhibited higher tensile strength and ductility than the AM welds.

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Joint integrity evaluation of laser beam welded additive manufactured Ti6Al4V sheets

Abstract

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