Investigating the tube production via friction stir extrusion of aluminum chips
Riccardo PULEO, Muhamad ADNAN, Giuseppe INGARAO, Gianluca BUFFA, Livan FRATINI
Abstract. Friction stir extrusion (FSE) is one of the friction stir based techniques commonly adopted among the solid state recycling (SSR) category. In the last decade this process was widely explored as one of the most straightforward applications for wire or rod production from recycling metal scraps. Nowadays, the friction stir extrusion techniques have also been investigated as a possible alternative for tube production. In this research, this friction-based process was explored aiming to obtain a consolidated tube by directly processing machining chips. Generally, the FSE setup involves a die, where the metal scraps are collected, and a tool with a designed hole for backward extrusion, but for the case of tube production the setup changes, and the clearance between die and tool becomes the extrusion channel. This process was investigated by varying the vertical load and the rotational speed of the tool, which were directly linked to the pressure and heat generation, respectively. Three parameter combinations were selected, namely cold, warm, and hot conditions. Moreover, a numerical simulation campaign was developed to give an insight into the process’ dynamics and material flow characteristics.
Keywords
Aluminium Alloys, Manufacturing Materials, Sustainability, FSE
Published online 9/10/2025, 8 pages
Copyright © 2025 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Riccardo PULEO, Muhamad ADNAN, Giuseppe INGARAO, Gianluca BUFFA, Livan FRATINI, Investigating the tube production via friction stir extrusion of aluminum chips, Materials Research Proceedings, Vol. 57, pp 352-359, 2025
DOI: https://doi.org/10.21741/9781644903735-41
The article was published as article 41 of the book Italian Manufacturing Association Conference
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
References
[1] G. Oberhausen, Y. Zhu, and D. R. Cooper, “Reducing the environmental impacts of aluminum extrusion,” Resour Conserv Recycl, vol. 179, Apr. 2022. https://doi.org/10.1016/j.resconrec.2021.106120
[2] T. Tolio et al., “Design, management and control of demanufacturing and remanufacturing systems,” CIRP Ann Manuf Technol, vol. 66, no. 2, pp. 585–609, 2017. https://doi.org/10.1016/j.cirp.2017.05.001
[3] B. S. Taysom et al., “Shear assisted processing and extrusion of enhanced strength aluminum alloy tubing,” Int J Mach Tools Manuf, vol. 169, Oct. 2021. https://doi.org/10.1016/j.ijmachtools.2021.103798
[4] S. Whalen et al., “Porthole die extrusion of aluminum 6063 industrial scrap by shear assisted processing and extrusion,” Manuf Lett, vol. 36, pp. 52–56, Jul. 2023. https://doi.org/10.1016/j.mfglet.2023.01.005
[5] T. Borgert, D. Milaege, S. Schweizer, W. Homberg, M. Schaper, and T. Tröster, “Potentials of a friction-induced recycling process to improve resource and energy efficiency in manufacturing technology,” International Journal of Material Forming, vol. 16, no. 6, Nov. 2023. https://doi.org/10.1007/s12289-023-01785-w
[6] D. Paraskevas, S. Dadbakhsh, J. Vleugels, K. Vanmeensel, W. Dewulf, and J. R. Duflou, “Solid state recycling of pure Mg and AZ31 Mg machining chips via spark plasma sintering,” Mater Des, vol. 109, pp. 520–529, Nov. 2016. https://doi.org/10.1016/j.matdes.2016.07.082
[7] A. Latif, G. Ingarao, M. Gucciardi, and L. Fratini, “A novel approach to enhance mechanical properties during recycling of aluminum alloy scrap through friction stir consolidation,” International Journal of Advanced Manufacturing Technology, vol. 119, no. 3–4, pp. 1989–2005, Mar. 2022. https://doi.org/10.1007/s00170-021-08346-y
[8] R. Puleo, A. Latif, G. Ingarao, and L. Fratini, “A generalized parametric model for the bonding occurrence prediction in friction stir consolidation of aluminum alloys chips,” J Manuf Process, vol. 131, pp. 604–618, Dec. 2024. https://doi.org/10.1016/j.jmapro.2024.09.049
[9] S. Kefyalew Abebe, D. K. Sinha, H. Beri Tufa, and G. A. Mengesha, “Physical and mechanical behavior of aluminum-magnesium alloy matrix hybrid composite fabricated through friction stir consolidation process,” Advances in Mechanical Engineering, vol. 15, no. 6, Jun. 2023. https://doi.org/10.1177/16878132231180013
[10] K. TAHMASBI, M. MAHMOODI, and H. TAVAKOLI, “Corrosion resistance of aluminum alloy AA7022 wire fabricated by friction stir extrusion,” Transactions of Nonferrous Metals Society of China (English Edition), vol. 29, no. 8, pp. 1601–1609, Aug. 2019. https://doi.org/10.1016/S1003-6326(19)65067-3
[11] G. Buffa, D. Campanella, F. Micari, and L. Fratini, “Design and development of a new machine tool for continuous friction stir extrusion,” CIRP J Manuf Sci Technol, vol. 41, pp. 391–400, Apr. 2023. https://doi.org/10.1016/j.cirpj.2023.01.004
[12] G. Ingarao, D. Baffari, E. Bracquene, L. Fratini, and J. Duflou, “Energy demand reduction of aluminum alloys recycling through friction stir extrusion processes implementation,” in Procedia Manufacturing, Elsevier B.V., 2019, pp. 632–638. doi: 10.1016/j.promfg.2019.04.079
[13] P. Asadi, M. Akbari, T. Sadowski, Y. D. Asl, N. Choupani, and F. Bedir, “Examining the
impact of tool taper angle in Al-Si tube manufacturing by friction stir extrusion,” J Manuf Process, vol. 131, pp. 532–544, Dec. 2024. https://doi.org/10.1016/j.jmapro.2024.09.047
[14] Z. Zhang et al., “Effects of Oxide Fragments on Microstructure and Mechanical Properties of AA6061 Aluminum Alloy Tube Fabricated by Thermomechanical Consolidation of Machining Chips,” Materials, vol. 16, no. 4, Feb. 2023. https://doi.org/10.3390/ma16041384
[15] R. A. Behnagh, F. Fathi, M. Yeganeh, M. Paydar, M. A. Mohammad, and Y. Liao, “Production of seamless tube from aluminum machining chips via double-step friction stir consolidation,” International Journal of Advanced Manufacturing Technology, vol. 104, no. 9–12, pp. 4769–4777, Oct. 2019. https://doi.org/10.1007/s00170-019-04326-5
[16] D. Baffari, G. Buffa, and L. Fratini, “A numerical model for Wire integrity prediction in Friction Stir Extrusion of magnesium alloys,” J Mater Process Technol, vol. 247, pp. 1– 10, Sep. 2017. https://doi.org/10.1016/j.jmatprotec.2017.04.007
