Investigation of the effects of different tool geometries on welded joining of EN AW-5754 and EN AW-5083 aluminum alloys with friction stir welding

Tolun, Fatmagül

doi:10.25092/baunfbed.680822

Cited by 3 publications

(3 citation statements)

References 22 publications

(18 reference statements)

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“…In the tensile tests carried out on specimens of AA5754 and AA5083 alloys, the rupture was always seen to occur in the HAZ and ductile fracture on the side of the AA5754 specimen. The cracks developed on the side of the AA5754 specimen owing to its slow tensile strength compared to that of AA5083; this is consistent with the literature [23,26,35,36].…”

Section: Resultssupporting

confidence: 90%

“…Figure 2 indicates that the welding seams of specimen 2, 3, 4, 5 were smooth and uniform, while those of specimen 1, 6, 7, 8 were rough. Therefore, the rough structure noticed in the welding seam of specimens 1, 6, 7, and 8 was thought to negatively affect the mechanical values of the weld [11,35]. According to the tensile test results, microstructure analyses and microhardness tests were performed for specimen 4, for which the highest welding strength was detected, and specimen 8, for which the lowest welding strength was determined.…”

Section: Resultsmentioning

confidence: 99%

“…as secondary phase particles, out of which Al 3 Mg 2 is seen to occur at 450 • C. This causes the Mg deficiency in the grain boundaries by structuring between the grains and the grain boundaries. The Al 6 Mn phase is an intermetallic phase with a melting temperature of 705 • C. The melting temperature of this phase is higher than the solidus temperature of the AA5754 alloy [35,40,41].…”

Section: Resultsmentioning

confidence: 99%

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Mechanical and microstructural properties of friction stir welded AA5083 and AA5754 aluminium alloys TOLUN, F.

Tolun¹

2021

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Friction stir welding is a solid-state welding method for joining materials having the same or different properties at temperatures below their melting points. Generally, the welding parameters affect the microstructural and mechanical properties of welded specimens. In this study, AA5083 and AA5754 aluminium alloys were joined by friction stir welding at different tool rotation speeds of 450, 700, and 900 rpm, feed rates of 40, 50, and 80 mm min −1 , and tilting angles of 0 • , 1 • , and 3 • using a tapered stir pin. The effects of these welding parameters on the mechanical properties of the welded parts were examined by tensile and micro-hardness tests. Moreover, the welded joints were analysed using an optical microscope, scanning electron microscope, and energy dispersive X-ray spectroscopy. The results indicated that the specimen welded at 50 mm min −1 feed rate, 450 rpm tool rotation speed, and a 1 • tilting angle exhibited the highest welding strength and elongation values.

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Section: Resultssupporting

confidence: 90%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Mechanical and microstructural properties of friction stir welded AA5083 and AA5754 aluminium alloys TOLUN, F.

Tolun¹

2021

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Effect of double-sided friction stir welding on the mechanical and microstructural characteristics of AA5754 aluminium alloy

Çelik¹,

Tolun²

2021

Materials Testing

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AA5754Al alloy is widely used in industry. However, as in the case of all Al alloys, the 5xxx series Al alloys cannot be easily joined through fusion welding techniques. To address this problem, in this study, the effect of double-sided friction stir welding at various tool rotational speeds (450, 710, and 900 rpm), feeding rates (40, 50, and 80 mm × min-1), and tool tilt angles (0°, 1°, 2°) on the welding parameters and mechanical and microstructural characteristics of AA5754 Al alloy was determined. Tensile strength tests and microhardness tests were performed to examine the mechanical properties of the welded specimens. The microstructures of the welded zone were examined by obtaining optical microscopy and scanning electron microscopy images. The tensile test results indicated that the specimens exhibited the highest welding performance of 95.17 % at a tool rotational speed, feed rate, and tool tilt angle of 450 rpm, 50 mm × min-1 and 1°, respectively.

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Effect of tool rotational speed and position on mechanical and microstructural properties of friction stir welded dissimilar alloys AZ31B Mg and Al6061

Tolun

2022

Materials Testing

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The existence of some problems in joining Al and Mg alloys using classical fusion welding methods causes limitations in the use of Mg and Al alloys in common structures. Friction stir welding (FSW) is a solid-state welding method for joining materials having same or different properties at temperatures below their melting points. In this study, dissimilar alloys AZ31B Mg and Al6061 were joined by FSW at a feed rate of 34 mm·min−1 and at different tool rotational speeds (600 and 700 rpm) and material positions. During the welding process, AZ31B Mg plate was positioned at the advancing side and Al6061 was located at the retreating side, and moreover, the two alloys were also positioned vice versa. Tensile strength and microhardness tests were performed to examine the mechanical properties of the welded specimens. The microstructures of the welded zones were examined by obtaining the optical microscopic (OM) and scanning electron microscopic (SEM) images. The highest welding strength was obtained from the specimen welded at a tool rotational speed of 600 rpm, at a feed rate of 34 mm·min−1 and by locating AZ31B Mg on the advancing side.

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Investigation of the effects of different tool geometries on welded joining of EN AW-5754 and EN AW-5083 aluminum alloys with friction stir welding

Cited by 3 publications

References 22 publications

Mechanical and microstructural properties of friction stir welded AA5083 and AA5754 aluminium alloys TOLUN, F.

Mechanical and microstructural properties of friction stir welded AA5083 and AA5754 aluminium alloys TOLUN, F.

Effect of double-sided friction stir welding on the mechanical and microstructural characteristics of AA5754 aluminium alloy

Effect of tool rotational speed and position on mechanical and microstructural properties of friction stir welded dissimilar alloys AZ31B Mg and Al6061

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