Effects of friction stir welding parameters on the mechanical properties of AA7075-T6

Hao, Duong Dinh; Tra, Tran Hung

doi:10.5604/18972764.1225594

Cited by 7 publications

(3 citation statements)

References 3 publications

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“…A few researchers performed comparable work on alternative materials such as AA7075 and AA2024, as well as different combinations [28][29][30]. C. Sharma et al [31] were interested in investigating the influence of tool rotation speed and welding speed on the mechanical characteristics of AA7039 -T6 aluminium alloy.…”

Section: Fsw Of Aluminium Alloysmentioning

confidence: 99%

Review of Joining Various Materials by FSW Process and Applications

Devanathan¹,

Babu²,

Murugan³

et al. 2022

AWET

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Welding is necessary in industries like light and heavy-duty manufacturing, construction, automotive, aerospace, maintenance, repair works, etc. Friction stir welding (FSW) is a recently created welding technique that is employed with a non-consumable pin in all of the above-mentioned production areas. The cross-sectional size and shapes of the pin are also showing a great impact on the properties of the joints. This review article begins with the history of welding methods and it covers the topics of welding evolution, principle, joining of similar and dissimilar materials using FSW, applications and defects, as well as the various process factors in managing the qualities of the welded joint. The necessity of FSW is inevitable as it shows a good response of the mechanical properties with solid state temperature. It is a versatile welding process that has the capacity to join numerous materials, beginning with aluminium alloys and moving on to magnesium alloys, steel, composites, polymers, and dissimilar metals combinations.

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Section: Fsw Of Aluminium Alloysmentioning

confidence: 99%

Review of Joining Various Materials by FSW Process and Applications

Devanathan¹,

Babu²,

Murugan³

et al. 2022

AWET

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“…Essentially, the loss of strength after the FSW process can be recovered by a suitable heat treatment. Several studies have been devoted to the impact of joining and heat treatment parameters on the quality characteristics of the joint [22][23][24][25]. However, only a few are published referring directly to the AA2519 alloy [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Residual Stresses of AA2519 Friction Stir Welded Joints under Different Heat Treatment Conditions

et al. 2020

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The aim of this research was to investigate the effect of different heat treatment conditions of AA2519 friction stir welded joints on their microstructure and residual stresses. The following welding parameters have been used: 500 rpm tool rotation speed, 150 mm/min tool traverse speed, tool tilt angle 2°, pressure force 17 kN. The welded material was investigated in three different configurations: HT0, HT1, and HT2. The first type of weld (HT-0) was made using AA2519 alloy in non-precipitation hardened state and examined in such condition. The second type of weld (HT-1) has been performed on AA2519-T62, that corresponds to precipitation hardening condition. The last type of weld (HT2) was performed on annealed AA2519 and the obtained welds were subjected to the post-weld precipitation hardening process. The heat treatment was carried out in two stages: solution heat treatment (530 °C/2 h + cooling in cold water) and aging (165 °C/1 0 h). Residual stresses were measured using X-Ray diffraction patterns obtained from Bruker D8 Discover X-ray diffractometer utilizing the concepts of Euler cradle and polycapillary primary beam optics. The conducted research indicates that the best material properties: homogenous microstructure and uniform distribution of microhardness and compressive state of residual stresses were obtained for the HT-2 series samples subjected to heat treatment after the friction stir welding (FSW) process.

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“…The friction-stir welding has emerged as a key technology for joining the alloy with high strength, economic efficiency, friendly environment compared to the quality of traditional welding methods, such as Tungsten Inert Gas welding, Metal Inert Gas welding and Laser Welding [3][4][5]. This is one of the key techniques to weld aluminum alloys [6][7][8][9]. However, this welding process is a complex thermal-mechanical interaction of the metal flow, thus several unsolved issues remain and need to be addressed.…”

Section: Introductionmentioning

confidence: 99%

Investigation of AA5083 T-lap joint fabricated by friction stir welding

Nhan

Khang

Tra³

2019

JST

Self Cite

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Transportation industries are faced to big maters that the scientists focus on, such as energy saving and ecologically sustainable products. Therefore, many innovative solutions are delivered that will support environmental preservation but meet industries’ requirements for greater productivity and minimized operational costs. Aluminium alloys have successfully contributed to meeting the rising demand for lightweight structures. Recently, notable developments in aluminium welding techniques have resolved many welding related problems, although some problems need to be addressed. In this paper, 5083 aluminium alloy T-lap-joints were successfully fabricated by friction stir welding with various welding regimes. The defects morphology in the T-joints was experimentally observed and analyzed by a high magnification microscope. The roles of the grain microstructure and the effects of defects morphology in the mechanical behavior of the T-joint was investigated. In addition, the fracture locations and the fracture surface of the failure specimens were observed and discussed as well. Results indicate that the fracture of T-joints along the stringer is attributed to the bonding line defects, kissing bond defects and the tunnel defects. The result also shows, in the T-joints of 5083 aluminum alloy, the welding parameters influence significantly on the features and sizes of the defects.

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Effects of friction stir welding parameters on the mechanical properties of AA7075-T6

Cited by 7 publications

References 3 publications

Review of Joining Various Materials by FSW Process and Applications

Review of Joining Various Materials by FSW Process and Applications

Microstructure and Residual Stresses of AA2519 Friction Stir Welded Joints under Different Heat Treatment Conditions

Investigation of AA5083 T-lap joint fabricated by friction stir welding

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