Abstract
In this work, a new technique of self-consumption friction plug spot welding (SFPSW) was introduced to spot welding of Ti–6Al–4V alloy sheets using a semi-consumable welding tool, and defect-free joints were successfully produced. The semi-consumable welding tool consists of a nickel-based superalloy shoulder and a titanium alloy plug. The spot welding parameters were discussed, and the effect of welding parameters on the microstructure and mechanical properties of the joints was investigated. The cross-section of the welding zone was divided into five regions: base metal (BM), heat-affected zone (HAZ), thermo-mechanically affected zone (TMAZ), stir zone (SZ), and filled zone (FZ). The final joint interface has a basket-weave structure. The maximum tensile-shear load of the joint was up to 69.5 kN and the hardness value of the welding region was lower than that of base metal. The failure mode of the tensile-shear test was a typical quasi-cleavage fracture.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
