Numerical simulation of friction stir butt-welding of 6061 aluminum alloy

Pei, Zhao; Shen, Yifu; Huang, Guoqiang; Zheng, Qixian

doi:10.1016/s1003-6326(18)64759-4

Cited by 10 publications

(3 citation statements)

References 19 publications

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“…In all cases, a slight asymmetry towards the retreating side (RS) is worthy of remark. This observation contradicts the data available in the scientific literature, in which a shift towards AS is usually predicted [5,8,9,[16][17][18]20,23,24,[28][29][30]33,36]. The reason for this discrepancy is not clear and warrants further analysis.…”

Section: Discussionmentioning

confidence: 73%

“…In contrast, the temperature distribution in the width direction of the stir zone is often found to be nearly symmetric [8,11,19,[24][25][26][27]. In many cases, however, a slightly increased temperature (~10-20 K) is predicted on the advancing side (AS) [5,8,9,[16][17][18]23,[28][29][30]. This asymmetry is sometimes attributed to a slight variation in the contact conditions at the tool/workpiece interface due to a tool tilting effect [31].…”

Section: Weld Thermal Cyclementioning

confidence: 99%

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Numerical Simulation of the Thermo-Mechanical Behavior of 6061 Aluminum Alloy during Friction-Stir Welding

Мишин

Shishov

Kalinenko

et al. 2022

JMMP

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In this work, a finite-element model was elaborated to simulate the thermomechanical behavior of 6061 aluminum alloy during friction-stir welding (FSW). It was shown that FSW-induced deformation is a two-stage process. In addition to the stirring action exerted by the rotating tool probe, the material in the near-surface area of the stir zone also experienced a secondary deformation by the shoulder edge after passage of the welding tool. Both deformation steps were found to be comparable in terms of temperature and strain, but the secondary deformation was primarily concentrated in the near-surface layer. The effects of tool rotation and translation rates on FSW temperature and strain were also systematically examined. Depending on particular welding conditions, the peak welding temperature was predicted to vary from 360 to 500 °C, while the cumulative effective strain was from 12 to 45.

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Section: Discussionmentioning

confidence: 73%

Section: Weld Thermal Cyclementioning

confidence: 99%

Numerical Simulation of the Thermo-Mechanical Behavior of 6061 Aluminum Alloy during Friction-Stir Welding

Мишин

Shishov

Kalinenko

et al. 2022

JMMP

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“…The FSW technology was developed using sophisticated robotic systems and software, facilitating the use of the FSW process in a wide range of industrial applications and working conditions (Mendes et al, 2016). Both experimental and numerical analysis are important for understanding the heat flow and the transfer between the steel tool and the workpiece during the FSW process, and the weld morphology (Chao et al, 2003;Fratini et al, 2006;Sadeghian, Taherizadeh and Atapour, 2018;Zhao et al, 2018). Authors Ku, Ha and Roh (2014) developed a mobile welding robot and software controls to be used for welding double hull structures in shipyards.…”

Section: Friction Stir Welding Processmentioning

confidence: 99%

Friction Stir Welding for Marine Applications: Mechanical Behaviour and Microstructural Characteristics of Al-Mg-Si-Cu Plates

Roldo

Vulić

2019

ToMS

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Friction stir welding is a multipurpose solid-state joining process mainly used for aluminium and steel plates and frames. Friction stir welded non-ferrous metallic alloys, similar or dissimilar, in particular aluminium alloys, provide opportunities for the improvement and developement of new product designs. This paper investigates the correlation between the mechanical behaviour and morphological structures of friction stir welded Al-Mg-Si(Cu) alloy plates in two temper conditions. Micro Vickers hardness and tensile tests were carried out. Additionally, morphology was investigated using optical microscopy and scanning electron microscopy. Samples subjected to the post weld heat treatment were shown to have the best properties owing to the formation of a significant number of hardening particles which, added to the nugget grain refinement, resulted in the increase of the material strength.

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Investigation of temperature distribution, microstructure evolution, and weld performance in stir friction welded joints of 6061 aluminum alloys

Wang,

Yang,

Chen

et al. 2024

Int J Adv Manuf Technol

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This paper investigates the relationship among welding process parameters, weld flow viscosity, welding heat generation, finite difference method (FDM) heat dissipation model, microstructural evolution, and mechanical properties during friction stir welding (FSW) of 6061-T6 aluminum alloy. Throughout the study, it was experimentally verified that the temperature inside the weld does not always increase on the AS side compared to the RS side under different welding process parameters, and the highest temperature did not always occur when the stirring pin passed through. As the flow viscosity is dependent on the weld temperature, and viscosity and temperature have corresponding inhibitory and promoting effects on the formation of intergranular structures in the weld, it is shown that the plastic flow of material differs at different positions in the weld nugget, subsequently affecting the macroscopic mechanical properties of the weld.

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Numerical simulation of friction stir butt-welding of 6061 aluminum alloy

Cited by 10 publications

References 19 publications

Numerical Simulation of the Thermo-Mechanical Behavior of 6061 Aluminum Alloy during Friction-Stir Welding

Numerical Simulation of the Thermo-Mechanical Behavior of 6061 Aluminum Alloy during Friction-Stir Welding

Friction Stir Welding for Marine Applications: Mechanical Behaviour and Microstructural Characteristics of Al-Mg-Si-Cu Plates

Investigation of temperature distribution, microstructure evolution, and weld performance in stir friction welded joints of 6061 aluminum alloys

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