Abstract
T-welded joints are commonly seen in various industrial assemblies. An effort is made to check the applicability of friction stir welding for producing T-joints made of AA6063-T6 using a developed fixture. Quality T-joints were produced free from any surface defects. The effects of three parameters, such as the speed of rotation of the tool, axial force, and travel speed were analyzed. Correspondingly, mechanical characteristics such as tensile strength, hardness in three zones (thermal heat affected zone, heat affected zone, and nugget zone) and temperature distribution were measured. The full factorial analysis was performed with various combinations of parameters generated using factorial design and responses. Evident changes in the strength, hardness, and temperature profile were noticed for each combination of parameters. The three main parameters were significant in every response with p-values less than 0.05, indicating their importance in the friction stir welding process. Mathematical models developed for investigated responses were satisfactory with high R-sq and least percentage error.
Highlights
Friction stir welding (FSW) has the capability to weld similar and dissimilar metals with different melting points [1,2,3]
Quality T joint welds made of AA6063-T6 were produced using a friction stir welding process with the developed fixture
Tensile strength was proportional to the speed of rotation within the experimental range (1000 rpm to 1800 rpm) at a constant travel speed
Summary
Friction stir welding (FSW) has the capability to weld similar and dissimilar metals with different melting points [1,2,3]. Only a few studies are available investigating specific process parameters of FSW used for joining T-joints that can produce sound welds [15,16,17]. Investigation of mechanical characteristics of this complex configuration after performing friction stir welding is much needed to evaluate the usefulness of the process for such applications [18,19]. This study is intended to experimentally evaluate the mechanical performances of the friction stir welded T-joints and to analyze statistically the significant parameters on responses such as weld strength, temperature, and hardness in three zones, namely the nugget zone (NZ), heat affected zone (HAZ), and thermally heat affected zone (TMAZ)
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
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.
