An experimental and numerical investigation on the process efficiency of the focused TIG welding of Inconel 718 thick plates

Salerno, Gervasio; Bennett, Chris; Sun, Wei; Becker, Adib A.

Abstract

A combined experimental and numerical approach was adopted to investigate the focused tungsten inert gas (TIG) welding process by producing bead-on-plate welds in Inconel 718 plates. Experimental investigations were carried out by means of thermocouple measurements and optical macrographs of the weld cross-section. Three dimensional finite element (FE) simulations were conducted using the commercial specialized FE software Sysweld in order to predict the thermal field induced by the process in the plates. The work presents an approach to investigate the process efficiency and calibrate the heat source model in order to produce a full thermal characterization the plasmatron welding apparatus.

Citation

Salerno, G., Bennett, C., Sun, W., & Becker, A. A. (2019). An experimental and numerical investigation on the process efficiency of the focused TIG welding of Inconel 718 thick plates. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 233(3), 823-833. https://doi.org/10.1177/0954405418775442

• Journal Article Type: Article
• Acceptance Date: Apr 8, 2018
• Online Publication Date: May 28, 2018
• Publication Date: Feb 1, 2019
• Deposit Date: Apr 18, 2018
• Publicly Available Date: May 28, 2018
• Journal: Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture
• Print ISSN: 0954-4054
• Electronic ISSN: 2041-2975
• Publisher: SAGE Publications
• Peer Reviewed: Peer Reviewed
• Volume: 233
• Issue: 3
• Pages: 823-833
• DOI: https://doi.org/10.1177/0954405418775442
• Keywords: Weld Thermal Histories; Finite Element; Thermocouples; Focused-TIG; Process Efficiency
• Public URL: https://nottingham-repository.worktribe.com/output/934300
• Publisher URL: http://journals.sagepub.com/eprint/MSCi83NbkvwzJnyM3y2A/full
• Contract Date: Apr 18, 2018