Abstract
In this study, firstly all of Al-7075-T6 alloys were joined by the friction stir welding (FSW) method then the samples were divided into four groups. First group of samples were used directly. The second group of samples was burnished. Third group of samples were aged and the last group of samples was subjected to both re-aging and burnishing process. It was compared the tensile and bending strengths of all prepared specimens. After the FSW process, only the second aging process increased the tensile strength. There is no effect on the tensile strength of the burnishing process. The bending strength has improved only the re-aging process without burnishing operation or only burnishing without the second aging process. In the friction stir welded Al-7075-T6 materials, it was concluded not to have a significant effect on the mechanical properties of the burnishing process. However, the hardness values of the materials were increased by both the re-aging and the burnishing process.
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References
Thomas, W. M. and Nicholas, E. D., “Friction Stir Welding for the Transportation Industries,” Materials & Design, Vol. 18, Nos. 4–6, pp. 269–273, 1997.
Zhao, Y.-H., Lin, S.-B., Wu, L., and Qu, F.-X., “The Influence of Pin Geometry on Bonding and Mechanical Properties in Friction Stir Weld 2014 Al Alloy,” Materials Letters, Vol. 59, No. 23, pp. 2948–2952, 2005.
Zhang, Z., Xiao, B., and Ma, Z., “Effect of Welding Parameters on Microstructure and Mechanical Properties of Friction Stir Welded 2219Al-T6 Joints,” Journal of Materials Science, Vol. 47, No. 9, pp. 4075–4086, 2012.
Genevois, C., Deschamps, A., Denquin, A., and Doisneau-Cottignies, B., “Quantitative Investigation of Precipitation and Mechanical Behaviour for AA2024 Friction Stir Welds,” Acta Materialia, Vol. 53, No. 8, pp. 2447–2458, 2005.
Munoz, A. C., Rückert, G., Huneau, B., Sauvage, X., and Marya, S., “Comparison of TIG Welded and Friction Stir Welded Al-4.5 Mg-0.26 Sc Alloy,” Journal of Materials Processing Technology, Vol. 197, Nos. 1–3, pp. 337–343, 2008.
İpekoĝlu, G., Erim, S., and Çam, G., “Effects of Temper Condition and Post Weld Heat Treatment on the Microstructure and Mechanical Properties of Friction Stir Butt-Welded AA7075 Al Alloy Plates,” The International Journal of Advanced Manufacturing Technology, Vol. 70, Nos. 1–4, pp. 201–213, 2014.
Elangovan, K. and Balasubramanian, V., “Influences of Post-Weld Heat Treatment on Tensile Properties of Friction Stir-Welded AA6061 Aluminum Alloy Joints,” Materials Characterization, Vol. 59, No. 9, pp. 1168–1177, 2008.
Singh, R. K. R., Sharma, C., Dwivedi, D. K., Mehta, N. K., and Kumar, P., “The Microstructure and Mechanical Properties of Friction Stir Welded Al-Zn-Mg Alloy in as Welded and Heat Treated Conditions,” Materials & Design, Vol. 32, No. 2, pp. 682–687, 2011.
Freeney, T. and Mishra, R., “Effect of Friction Stir Processing on Microstructure and Mechanical Properties of a Cast-Magnesium-Rare Earth Alloy,” Metallurgical and Materials Transactions A, Vol. 41, No. 1, pp. 73–84, 2010.
Song, K. and Nakata, K., “Microstructural and Mechanical Properties of Friction-Stir-Welded and Post-Heat-Treated Inconel 718 Alloy,” Journal of Alloys and Compounds, Vol. 505, No. 1, pp. 144–150, 2010.
Chen, Y.-H., Quan, N., and Ke, L.-M., “Interface Characteristic of Friction Stir Welding Lap Joints of Ti/Al Dissimilar Alloys,” Transactions of Nonferrous Metals Society of China, Vol. 22, No. 2, pp. 299–304, 2012.
Fujii, H., Cui, L., and Nogi, K., “Welding of High Carbon Steel without Transformation,” Key Engineering Materials, Vols. 345–346, pp. 1411–1415, 2007.
Zhou, L., Wang, T., Zhou, W., Li, Z., Huang, Y., and Feng, J., “Microstructural Characteristics and Mechanical Properties of 7050-T7451 Aluminum Alloy Friction Stir-Welded Joints,” Journal of Materials Engineering and Performance, Vol. 25, No. 6, pp. 2542–2550, 2016.
Prisco, U., Squillace, A., Astarita, A., and Velotti, C., “Influence of Welding Parameters and Post-Weld Aging on Tensile Properties and Fracture Location of AA2139-T351 Friction-Stir-Welded Joints,” Materials Research, Vol. 16, No. 5, pp. 1106–1112, 2013.
Aydın, H., Bayram, A., and Durgun, I., “The Effect of Post-Weld Heat Treatment on the Mechanical Properties of 2024-T4 Friction Stir-Welded Joints,” Materials & Design, Vol. 31, No. 5, pp. 2568–2577, 2010.
El-Axir, M., “An Investigation into Roller Burnishing,” International Journal of Machine Tools and Manufacture, Vol. 40, No. 11, pp. 1603–1617, 2000.
Korhonen, H., Laakkonen, J., Hakala, J., and Lappalainen, R., “Improvements in the Surface Characteristics of Stainless Steel Workpieces by Burnishing with an Amorphous Diamond-Coated Tip,” Machining Science and Technology, Vol. 17, No. 4, pp. 593–610, 2013.
Balland, P., Tabourot, L., Degre, F., and Moreau, V., “An Investigation of the Mechanics of Roller Burnishing through Finite Element Simulation and Experiments,” International Journal of Machine Tools and Manufacture, Vol. 65, pp. 29–36, 2013.
El-Axir, M., Othman, O., and Abodiena, A., “Improvements in Out-of-Roundness and Microhardness of Inner Surfaces by Internal Ball Burnishing Process,” Journal of Materials Processing Technology Vol. 196, Nos. 1–3, pp. 120–128, 2008.
Başak, H., Özkan, S., and Taşkesen, A., “Application of Burnishing Process on Friction Stir Welding and Investigation of the Effect of Burnishing Process on the Surface Roughness, Hardness and Strength,” Experimental Techniques, Vol. 35, No. 1, pp. 8–16, 2011.
Cuniberti, A., Tolley, A., Riglos, M. C., and Giovachini, R., “Influence of Natural Aging on the Precipitation Hardening of an AlMgSi Alloy,” Materials Science and Engineering: A, Vol. 527, No. 20, pp. 5307–5311, 2010.
Sönmez, F., “Combining Age Hardenable Aluminum Alloys with Friction Stir Welding and Examining Mechanical Properties after Welding,” Ph. D. Thesis, GAZİ ÜNİVERSİTESİ, 2016.
Fuller, C. B., Mahoney, M. W., Calabrese, M., and Micona, L., “Evolution of Microstructure and Mechanical Properties in Naturally Aged 7050 and 7075 Al Friction Stir Welds,” Materials Science and Engineering: A, Vol. 527, No. 9, pp. 2233–2240, 2010.
Surekha, K., Murty, B. S., and Rao, K. P., “Microstructural Characterization and Corrosion Behavior of Multipass Friction Stir Processed AA2219 Aluminium Alloy,” Surface and Coatings Technology, Vol. 202, No. 17, pp. 4057–4068, 2008.
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Fikret Sönmez He completed his Ph.D. in the Department of Mechanical Education, Gazi University, TURKEY. His research interest includes Computer Aided Design and Manufacturing, Machinability, Manufacturing Processes.
Hüdayim BaşakProfessor in the Department of Industrial Design Engineering, Gazi University, TURKEY. His research interest includes Computer Aided Design, Product Design, Biomimetic, Creative and innovative Design, Welding Technologies.
Ahmet Güral Professor in the Department of Metallurgical and Materials Engineering, Gazi University, TURKEY. His research interest includes materials characterization, powder metallurgy, heat treatment of steels and alloys.
Şehmus Baday Assistant Professor in the Department of Mechanical and Manufacturing Engineering, Batman University, TURKEY. His research interest includes manufacturing processes, optimization techniques, machinability, computer aided design and computer aided manufacturing.
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Sönmez, F., Başak, H., Güral, A. et al. Investigating the Efficiency of Secondary Aging and Burnishing Process in Friction Stir Welded Al-7075-T6 Material. Int. J. Precis. Eng. Manuf. 19, 1515–1520 (2018). https://doi.org/10.1007/s12541-018-0178-9
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DOI: https://doi.org/10.1007/s12541-018-0178-9