Formability analysis of dissimilar friction stir welded AA 6061 and AA 5083 blanks by SPIF process

Tayebi, Payam; Fazli, Ali; Asadi, Parviz; Soltanpour, Mahdi

doi:10.1016/j.cirpj.2019.02.002

Cited by 52 publications

(17 citation statements)

References 34 publications

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“…5f for homogenize annealed specimen at 325 °C. The extra stretched dimples were shown the sign of shear fracture association within this treatment temperature (Tayebi et al, 2019). The distributed packets of shear fracture as marked in Fig 5f are extremely helpful in providing the work-hardening effect and also improves the micro-plasticity (Muzamil et al, 2019b) at localizing areas of surface welded joints.…”

Section: Resultsmentioning

confidence: 80%

Comportamiento macromecánico de uniones soldadas de superficie (AA5083) utilizando soldadura con gas inerte de tungsteno con recocido de homogeneización en una sola etapa

Muzamil

Samiuddin

et al. 2020

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Las uniones soldadas de superficie se consideran una estrategia avanzada e innovadora para lograr una resistencia aceptable sin consumir excesiva energía en la preparación de las muestras. Se soldaron dos superficies planas de la aleación AA5083 desde cuatro lados y utilizando el mismo material de relleno. En el análisis de la soldadura de superficie, se logró una profundidad de fusión de hasta 2 - 2,2 mm en cada lado, aunque la parte central permaneció sin fusionar. Después de la unión, se realizó un recocido de homogeneización a 275 y 325 °C durante 3 h, lo que aumentó el rendimiento de la unión hasta un 57,6%. Las micrografías ópticas de las zonas fusionadas han permitido la visibilidad de combinación alternativa de Al6(Mn, Fe) y Mg2Si con el aumento de la temperatura de recocido de 275 a 325 °C. Las observaciones de la superficie de la fractura incluyen el límite de la interface de la zona completamente fusionada (CFZ) y la zona fusionada del material base (BMFZ), que en combinación definieron todo el mecanismo de la fractura.

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Section: Resultsmentioning

confidence: 80%

Comportamiento macromecánico de uniones soldadas de superficie (AA5083) utilizando soldadura con gas inerte de tungsteno con recocido de homogeneización en una sola etapa

Muzamil

Samiuddin

et al. 2020

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“…Previous studies, Rattanachan et al [28] and Ambrogio et al [19], found that the maximum forming angle of the FSWed samples reduces compared to the BM, and Tayebi et al [23] reported the FSW process has no considerable negative effects on the wall angle of 5083 and 6061 alloys. Ambrogio et al [19] reported that the maximum forming angle in the FSW sample is reduced compared to BM AA6181 sheet.…”

Section: Experimental Test Of Spif Processmentioning

confidence: 93%

“…By examining the formed samples and also analyzing the failure surface for two TPIF and SPIF methods, it was found that the samples formed by TPIF method have a higher value of formability. Tayebi et al [23] investigated the formability of dissimilar FSW AA 6061 and AA 5083 sheets by the SPIF process. They found out the FSW process has no negative effects on the formability of the dissimilar weld.…”

Section: Introductionmentioning

confidence: 99%

Formability study and metallurgical properties analysis of FSWed AA 6061 blank by the SPIF process

et al. 2021

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In this study, in order to obtain the maximum possible formability in tailor-welded blank AA6061 sheets connected by the friction stir welding (FSW) procedure, the incremental sheet forming process has been utilized. The results are presented both numerically and experimentally. To obtain the forming limit angle, the base and FSWed sheets were formed in different angles with conical geometry, and ultimately, the forming limit angle for the base metal and FSWed sheet is estimated to be 60° and 57.5°, respectively. To explore the effects of welding and forming procedures on AA6061 sheets, experimental studies such as mechanical properties, microstructure and fracture analysis are carried out on the samples. Also, the thickness distribution of the samples is studied to investigate the effect of the welding process on the thickness distribution. Then, the numerical process was simulated by the ABAQUS commercial software to study the causes of the FSWed samples failure through analyzing the thickness distribution parameter, and major and minor strains and the strain distribution. Causes of failure in FSWed samples include increased minor strain, strain distribution and thickness distribution in welded areas, especially in the proximity of the base metal area.

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“…Furthermore, the amount of strain applied to the material during the friction-stir-based processes is very much higher in compare to the other severe plastic deformation (SPD) processes [23]. For instance, the maximum amount of strain can be applied by the different types of the extrusion, equal channel angular process (ECAP), and incremental forming (IF) processes is 1-5 [24]. While, it is varying between 50-200 in the FSW process, based on the tool geometry and process parameters [25]- [27].…”

Section: Strain Distributionmentioning

confidence: 99%

Brass Wire Forming By Friction Stir Back Extrusion: Numerical Modeling and Experiment

Akbari

Asadi

2021

Preprint

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Friction stir back extrusion (FSBE) is used to produce brass wires and then, Numerical modeling is developed to simulate the FSBE of brass based on the Coupled Eulerian-Lagrangian technique (CEL) and verified by experiments. Next, the effects of FSBE parameters such as tool rotational and plunging speed on the strain and temperature distributions, microstructure, and patterns of material flow are studied. The results show that, the highest temperature and strain occurs near the tool/workpiece interface, but in a further distance from the tool axis. Additionally, in the cross section of a FSBE wire, the microstructure is finer in the periphery of the sample. A higher rotational speed or a lower plunging speed results in a coarser microstructure. The material flow pattern during the process is conical helix, and does not change meaningfully by the process parameters. The points at the further distance from the tool axis, along with an upward movement, experience an inward spiral movement which is amplified by higher rotational speed. However, the materials very near the tool axis almost take an upward movement and endure a very lower strain.

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Formability analysis of dissimilar friction stir welded AA 6061 and AA 5083 blanks by SPIF process

Cited by 52 publications

References 34 publications

Comportamiento macromecánico de uniones soldadas de superficie (AA5083) utilizando soldadura con gas inerte de tungsteno con recocido de homogeneización en una sola etapa

Comportamiento macromecánico de uniones soldadas de superficie (AA5083) utilizando soldadura con gas inerte de tungsteno con recocido de homogeneización en una sola etapa

Formability study and metallurgical properties analysis of FSWed AA 6061 blank by the SPIF process

Brass Wire Forming By Friction Stir Back Extrusion: Numerical Modeling and Experiment

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