Fatigue properties of combined friction stir and adhesively bonded AA6082‐T6 overlap joints

Maciel, Ricardo; Bento, Tiago; Braga, Daniel F.O.; Silva, Lucas F. M. da; Moreira, P.M.G.P.; Infante, V.

doi:10.1111/ffe.13287

Cited by 10 publications

(14 citation statements)

References 22 publications

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“…The best candidates for this purpose appear to be epoxy-based adhesives (mono-or bi-component) and polyimide-based adhesives [40]. By combining FSW and adhesive bonding into a friction stir (FS) weld bonding, FSW-AB, the overall joint mechanical performance is greatly improved as the adhesive layer reduces the peel stress at the weld edges [99]. For instance, this method was used to improve the strength of FSW joints of magnesium-to-aluminum FS spot welded joints, resulting in increased quasistatic and fatigue strength [100].…”

Section: Friction Stir Welding and Adhesive Bonding (Fsw-ab)mentioning

confidence: 99%

A Review of Structural Adhesive Joints in Hybrid Joining Processes

et al. 2021

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Hybrid joining (HJ) is the combination of two or more joining techniques to produce joints with enhanced properties in comparison to those obtained from their parent techniques. Their adoption is widespread (metal to metal joint, composite to composite and composite to metal) and is present in a vast range of applications including all industrial sectors, from automotive to aerospace, including naval, construction, mechanical and utilities. The objective of this literature review is to summarize the existing research on hybrid joining processes incorporating structural adhesives highlighting their field of application and to present the recent development in this field. To achieve this goal, the first part presents an introduction on the main class of adhesives, subdivided by their chemical nature (epoxy, polyurethane, acrylic and cyanoacrylate, anaerobic and high-temperature adhesives) The second part describes the most commonly used Hybrid Joining (HJ) techniques (mechanical fastening and adhesive bonding, welding processes and adhesive bonding) The third part of the review is about the application of adhesives in dependence of performance, advantage and disadvantage in the hybrid joining processes. Finally, conclusions and an outlook on critical challenges, future perspectives and research activities are summarized. It was concluded that the use of hybrid joining technology could be considered as a potential solution in various industries, in order to reduce the mass as well as the manufacturing cost.

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Section: Friction Stir Welding and Adhesive Bonding (Fsw-ab)mentioning

confidence: 99%

A Review of Structural Adhesive Joints in Hybrid Joining Processes

et al. 2021

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“…Conventional welding methods might lead to the formation of defects due to the change of state, such as poor solidification and porosity in the nugget zone. FSW allows to improve the weld quality and is widely used in joining AA6082 alloy [19][20][21][22]. Fewer scientific evidence are present in the literature on the effect of processing parameters on the electrochemical behavior of friction stir-welded AA6082 sheets.…”

Section: Introductionmentioning

confidence: 99%

Effect of Processing Parameters on Strength and Corrosion Resistance of Friction Stir-Welded AA6082

Laska

Szkodo

Koszelow

et al. 2022

Metals

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The friction stir welding method is increasingly attracting interest in the railway sector due to its environmental friendliness, low cost, and ease of producing high-quality joints. Using aluminum alloys reduces the weight of structures, increasing their payload and reducing fuel consumption and running costs. The following paper presents studies on the microstructure, strength, and corrosion resistance of AA6082 aluminum alloy sheets joined via friction stir welding. The sheets were joined by employing two different traverse speeds (200 and 250 mm/min), two different rotational speeds (1000 and 1250 rpm), and two different tool tilt angles (0° and 2°). It was observed that the use of the inclined tool provides finer microstructure in the nugget zone, higher value of microhardness, and better corrosion resistance, compared to the tilt angle equal to 0°. By increasing the value of revolutionary pitch, finer grains are observed in the nugget zone and the measured hardness is higher. It was also observed that the change in process parameters strongly influences the radius of the nugget zone and the potentiodynamic properties of the friction stir-welded material. The joints produced with the tool tilt angle equal to 2°, the tool traverse speed of 200 mm/min, and its rotational speed of 1250 rpm revealed the highest hardness in the nugget zone (about 92% of the base material). Moreover, the finest grain size in the nugget with the average value of 9.8 ± 1.5 µm was found. The lowest corrosion current density equal to 16.029 µA × cm−2 was noted for the sample with the highest strength, which also provides its good corrosion resistance.

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“…It usually exhibited a lower hardness and strength. 2,[18][19][20][21] Therefore, the fatigue performance of SZ should be paid attention.…”

Section: Introductionmentioning

confidence: 99%

Effect of rolling process on fatigue performance of stir zone of AA6061‐T6 doube‐side friction stir welding joint

Pan

Chen

et al. 2020

Fatigue Fract Eng Mat Struct

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Stir zone (SZ) of AA6061‐T6 double‐side friction stir welding (DS‐FSW) joint with a thickness of 6 mm had a poor fatigue performance compared with that of base metal (BM). The rolling process was employed to improve the fatigue performance of SZ. The results showed that rolling process increased the dislocation density in SZ and remarkably enhanced its fatigue performance. The crack initiation played a key role in the fatigue performance of SZ. It relied on the debonding of lamellar structure in SZ. The debonding of lamellar structure depended on the cracking of fine grain layer in lamellar structure.

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Fatigue properties of combined friction stir and adhesively bonded AA6082‐T6 overlap joints

Cited by 10 publications

References 22 publications

A Review of Structural Adhesive Joints in Hybrid Joining Processes

A Review of Structural Adhesive Joints in Hybrid Joining Processes

Effect of Processing Parameters on Strength and Corrosion Resistance of Friction Stir-Welded AA6082

Effect of rolling process on fatigue performance of stir zone of AA6061‐T6 doube‐side friction stir welding joint

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