Abstract
Friction lap welding was used to join aluminum with glass fiber–reinforced thermoset polymer (GFRP) using a thermoplastic interlayer. The effect of different welding parameters on joint strength and fracture surfaces was investigated, and the optimal welding parameters were determined using the Taguchi method. Results revealed that low heat generation led to weak mechanical interlocking between GFRP and the thermoplastic interlayer, while high heat generation caused degradation of the aluminum/thermoplastic polymer interface. The tool traverse speed was found to be the most influential parameter in terms of joint strength, followed by plunge depth and rotational speed. Moreover, thermal measurements were conducted during the welding process using thermocouples. An uneven thermal distribution was discovered across the overlap area due to dissimilar substrates. This issue was resolved by incorporating aluminum thermal insulation, resulting in improved heat distribution and a significant enhancement of 94% in joint strength. Scanning electron microscopy (SEM) was employed to identify joining mechanisms and examine the effect of welding parameters on joint microstructure. Furthermore, Fourier-transform infrared spectroscopy (FTIR) was used to investigate chemical bond formation at the aluminum/thermoplastic polymer interface. The results showed that the joining mechanisms involved mechanical interlocking between the thermoplastic interlayer and aluminum, as well as chemical bonding, penetration, and intertwining between the thermoplastic interlayer and the thermoset composite.
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References
Jiang B, Chen Q, Yang J (2020) Advances in joining technology of carbon fiber-reinforced thermoplastic composite materials and aluminum alloys. Int J Adv Manuf Technol 110:2631–2649. https://doi.org/10.1007/s00170-020-06021-2
El EH, Korkmaz ME, Gupta MK et al (2022) A state-of-the-art review on mechanical characteristics of different fiber metal laminates for aerospace and structural applications. Int J Adv Manuf Technol 123:2965–2991. https://doi.org/10.1007/s00170-022-10277-1
Cole GS, Sherman AM (1995) Light weight materials for automotive applications. Mater Charact 35:3–9. https://doi.org/10.1016/1044-5803(95)00063-1
Goushegir SM, dos Santos JF, Amancio-Filho ST (2016) Failure and fracture micro-mechanisms in metal-composite single lap joints produced by welding-based joining techniques. Compos Part A Appl Sci Manuf 81:121–128. https://doi.org/10.1016/j.compositesa.2015.11.001
Temesi T, Czigany T (2020) Integrated structures from dissimilar materials: the future belongs to aluminum–polymer joints. Adv Eng Mater 22:2000007. https://doi.org/10.1002/adem.202000007
Cakir MV, Kinay D (2021) MWCNT, nano-silica, and nano-clay additives effects on adhesion performance of dissimilar materials bonded joints. Polym Compos 42:5880–5892. https://doi.org/10.1002/pc.26268
Aamir M, Tolouei-Rad M, Giasin K, Nosrati A (2019) Recent advances in drilling of carbon fiber–reinforced polymers for aerospace applications: a review. Int J Adv Manuf Technol 105:2289–2308. https://doi.org/10.1007/s00170-019-04348-z
Amancio-Filho ST, Dos Santos JF (2009) Joining of polymers and polymer–metal hybrid structures: recent developments and trends. Polym Eng Sci 49:1461–1476. https://doi.org/10.1002/pen.21424
Kweon J-H, Jung J-W, Kim T-H et al (2006) Failure of carbon composite-to-aluminum joints with combined mechanical fastening and adhesive bonding. Compos Struct 75:192–198. https://doi.org/10.1016/j.compstruct.2006.04.013
Baldan A (2004) Adhesively-bonded joints in metallic alloys, polymers and composite materials: mechanical and environmental durability performance. J Mater Sci 39:4729–4797. https://doi.org/10.1023/B:JMSC.0000035317.87118.ab
Haghshenas M, Khodabakhshi F (2019) Dissimilar friction-stir welding of aluminum and polymer: a review. Int J Adv Manuf Technol 104:333–358. https://doi.org/10.1007/s00170-019-03880-2
Li H, Chen C, Yi R et al (2022) Ultrasonic welding of fiber-reinforced thermoplastic composites: a review. Int J Adv Manuf Technol 120:29–57. https://doi.org/10.1007/s00170-022-08753-9
Amancio-Filho ST, Bueno C, Dos Santos JF et al (2011) On the feasibility of friction spot joining in magnesium/fiber-reinforced polymer composite hybrid structures. Mater Sci Eng A 528:3841–3848. https://doi.org/10.1016/j.msea.2011.01.085
Baffari D, Buffa G, Campanella D et al (2018) Experimental and numerical investigation on a new FSW based metal to composite joining technique. J Manuf Process 34:758–764. https://doi.org/10.1016/j.jmapro.2018.03.048
Dalwadi CG, Patel AR, Kapopara JM et al (2018) Examination of mechanical properties for dissimilar friction stir welded joint of Al alloy (AA-6061) to PMMA (Acrylic). Mater Today Proc 5:4761–4765. https://doi.org/10.1016/j.matpr.2017.12.049
Liu FC, Dong P (2019) Promising high-speed welding techniques for joining polymers to metals and underlying joining mechanisms. In: Friction stir welding and processing X. Springer, 13–22. https://doi.org/10.1007/978-3-030-05752-7_2
Ma N, Geng P, Ma Y et al (2021) Thermo-mechanical modeling and analysis of friction spot joining of Al alloy and carbon fiber-reinforced polymer. J Market Res 12:1777–1793. https://doi.org/10.1016/j.jmrt.2021.03.111
Patel AR, Kotadiya DJ, Kapopara JM et al (2018) Investigation of mechanical properties for hybrid joint of aluminium to polymer using friction stir welding (FSW). Mater Today Proc 5:4242–4249. https://doi.org/10.1016/j.matpr.2017.11.688
Rao PVCS, Mounika E, Vikram G (2019) Process parameters optimization on FSW of polycarbonate and AA6061. Mater Today Proc 19:637–641. https://doi.org/10.1016/j.matpr.2019.07.745
Yan Y, Shen Y, Lei H et al (2020) Friction lap welding AA6061 alloy and GFR nylon: Influence of welding parameters and groove features on joint morphology and mechanical property. J Mater Process Technol 278:116458. https://doi.org/10.1016/j.jmatprotec.2019.116458
Wu LH, Nagatsuka K, Nakata K (2018) Direct joining of oxygen-free copper and carbon-fiber-reinforced plastic by friction lap joining. J Mater Sci Technol 34:192–197. https://doi.org/10.1016/j.jmst.2017.10.019
Xie Y, Huang Y, Meng X et al (2020) Friction stir spot welding of aluminum and wood with polymer intermediate layers. Constr Build Mater 240:117952. https://doi.org/10.1016/j.conbuildmat.2019.117952
Geng P, Ma N, Ma H et al (2022) Flat friction spot joining of aluminum alloy to carbon fiber reinforced polymer sheets: experiment and simulation. J Mater Sci Technol 107:266–289. https://doi.org/10.1016/j.jmst.2021.08.043
Giurgiutiu V (2022) Stress, vibration, and wave analysis in aerospace composites: SHM and NDE applications. Academic Press
Gebrehiwet L, Abate E, Negussie Y, et al Application of composite materials in aerospace & automotive industry. https://doi.org/10.35629/5252-0503697723
Gaitonde VN, Karnik SR, Mata F, Davim JP (2010) Modeling and analysis of machinability characteristics in PA6 and PA66 GF30 polyamides through artificial neural network. J Thermoplast Compos Mater 23:313–336. https://doi.org/10.1177/0892705709349319
Derazkola HA, Kashiry Fard R, Khodabakhshi F (2018) Effects of processing parameters on the characteristics of dissimilar friction-stir-welded joints between AA5058 aluminum alloy and PMMA polymer. Weld World 62:117–130. https://doi.org/10.1007/s40194-017-0517-y
Choi J-W, Morisada Y, Liu H et al (2020) Dissimilar friction stir welding of pure Ti and carbon fibre reinforced plastic. Sci Technol Weld Join 25:600–608. https://doi.org/10.1080/13621718.2020.1788814
Huang Y, Meng X, Wang Y et al (2018) Joining of aluminum alloy and polymer via friction stir lap welding. J Mater Process Technol 257:148–154. https://doi.org/10.1016/j.jmatprotec.2018.02.043
Lambiase F, Grossi V, Di Ilio A, Paoletti A (2020) Feasibility of friction stir joining of polycarbonate to CFRP with thermosetting matrix. Int J Adv Manuf Technol 106:2451–2462. https://doi.org/10.1007/s00170-019-04814-8
Ashong AN, Lee M, Hong S-T et al (2021) Refill friction stir spot welding of dissimilar AA6014 Al alloy and carbon-fiber-reinforced polymer composite. Met Mater Int 27:639–649. https://doi.org/10.1007/s12540-020-00788-5
Liu FC, Dong P, Lu W, Sun K (2019) On formation of AlOC bonds at aluminum/polyamide joint interface. Appl Surf Sci 466:202–209. https://doi.org/10.1016/j.apsusc.2018.10.024
Lim M-Y, Kim HJ, Baek SJ et al (2014) Improved strength and toughness of polyketone composites using extremely small amount of polyamide 6 grafted graphene oxides. Carbon N Y 77:366–378. https://doi.org/10.1016/j.polymdegradstab.2012.01.017
Huang Y, Meng X, Xie Y et al (2018) Friction stir welding/processing of polymers and polymer matrix composites. Compos Part A Appl Sci Manuf 105:235–257. https://doi.org/10.1016/j.compositesa.2017.12.005
Cross AD, Jones RA (1969) An introduction to practical infra-red spectroscopy. (No Title). https://doi.org/10.1007/978-1-4899-6596-7
Porubská M, Szöllős O, Kóňová A et al (2012) FTIR spectroscopy study of polyamide-6 irradiated by electron and proton beams. Polym Degrad Stab 97:523–531
Öhman M, Persson D, Leygraf C (2006) In situ ATR-FTIR studies of the aluminium/polymer interface upon exposure to water and electrolyte. Prog Org Coat 57:78–88. https://doi.org/10.1016/j.porgcoat.2006.07.002
Farmer VC (1974) The infrared spectra of minerals. Mineral Soc Monogr 4:331–363
Ahern AM, Schwartz PR, Shaffer LA (1992) Characterization of conversion-coated aluminum using Fourier transform infrared and Raman spectroscopies. Appl Spectrosc 46:1412–1419. https://opg.optica.org/as/abstract.cfm?uri=as-46-9-1412
Zhao S, Kimura F, Wang S, Kajihara Y (2021) Chemical interaction at the interface of metal–plastic direct joints fabricated via injection molded direct joining. Appl Surf Sci 540:148339. https://doi.org/10.1016/j.apsusc.2020.148339
Ma Y, Zhou T, Su G et al (2016) Understanding the crystallization behavior of polyamide 6/polyamide 66 alloys from the perspective of hydrogen bonds: projection moving-window 2D correlation FTIR spectroscopy and the enthalpy. RSC Adv 6:87405–87415. https://doi.org/10.1039/C6RA09611E
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Sahranavard, M., Khoramishad, H. Effects of welding parameters and thermal insulation on the mechanical behavior and microstructure of friction lap-welded aluminum to glass fiber–reinforced thermoset composite with a thermoplastic PA6 interlayer. Int J Adv Manuf Technol 132, 727–743 (2024). https://doi.org/10.1007/s00170-024-13413-1
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DOI: https://doi.org/10.1007/s00170-024-13413-1