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Omoniyi PO, Mahamood RM, Arthur N, Pityana S, Skhosane S, Okamoto Y, Shinonaga T, Maina MR, Jen TC, Akinlabi ET. Joint integrity evaluation of laser beam welded additive manufactured Ti6Al4V sheets. Sci Rep 2022; 12:4062. [PMID: 35260750 PMCID: PMC8904478 DOI: 10.1038/s41598-022-08122-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 03/02/2022] [Indexed: 11/09/2022] Open
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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Affiliation(s)
- P O Omoniyi
- Mechanical Engineering Science Department, University of Johannesburg, P. O. Box 524, Johannesburg, South Africa. .,Mechanical Engineering Department, University of Ilorin, P. M. B. 1515, Ilorin, Nigeria.
| | - R M Mahamood
- Mechanical Engineering Science Department, University of Johannesburg, P. O. Box 524, Johannesburg, South Africa.,Department of Materials and Metallurgical Engineering, University of Ilorin, P. M. B. 1515, Ilorin, Nigeria
| | - N Arthur
- National Laser Centre, CSIR, P. O. Box 395, Pretoria, South Africa
| | - S Pityana
- National Laser Centre, CSIR, P. O. Box 395, Pretoria, South Africa
| | - S Skhosane
- National Laser Centre, CSIR, P. O. Box 395, Pretoria, South Africa
| | - Y Okamoto
- Graduate School of Natural Science and Technology, Okayama University, Okayama, Japan
| | - T Shinonaga
- Graduate School of Natural Science and Technology, Okayama University, Okayama, Japan
| | - M R Maina
- Department of Mechatronics Engineering, Jomo Kenyatta University of Agriculture and Technology, 62000-00200, Nairobi, Kenya
| | - T C Jen
- Mechanical Engineering Science Department, University of Johannesburg, P. O. Box 524, Johannesburg, South Africa
| | - E T Akinlabi
- Mechanical Engineering Science Department, University of Johannesburg, P. O. Box 524, Johannesburg, South Africa.,Pan Africa University for Life and Earth Sciences Institute, 200132, Ibadan, Nigeria
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