Abstract
Friction Stir Welding (FSW) is a solid state joining process widely used in aerospace industry for near net shape manufacturing. In the past, FSW has been well established with similar titanium alloys. The process is mainly optimized for titanium alloy, Ti-6Al-4V, to produce defect free joints of it. The current study evaluates FSW with dissimilar titanium alloys that include, Ti-6Al-4V, Ti-6242, and Ti-54MFG to broaden the application of the process with titanium alloys. FSW of dissimilar titanium joints was studied by varying its process conditions, namely, rotation speed and feed rate during the process. The experimental study of effect of process parameters on friction stir welded dissimilar titanium joints was conducted to investigate the mechanical performance of joints. The mechanical performance of joints showed that the modulus of elasticity close to 120 GPa and average ultimate strength of 920 MPa was obtained. The optimum values of rotation speed and feed rate were identified for joining dissimilar titanium alloys.
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Acknowledgments
The authors acknowledge The Boeing Company for the supply of materials, welds and financial support. We sincerely thank Dr. D. Sanders for his encouragement throughout this research project.
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© 2016 The Society for Experimental Mechanics, Inc.
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Kulkarni, N., Ramulu, M. (2016). Experimental Study of Mechanical Performance in Friction Stir Welded Dissimilar Titanium Alloys. In: Sciammarella, C., Considine, J., Gloeckner, P. (eds) Experimental and Applied Mechanics, Volume 4. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-22449-7_20
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DOI: https://doi.org/10.1007/978-3-319-22449-7_20
Publisher Name: Springer, Cham
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