Modeling and optimization of tool parameters in friction stir lap joining of aluminum using RSM and NSGA II

Akbari, Mostafa; Asiabaraki, Hossein Rahimi

doi:10.1080/09507116.2022.2164530

Cited by 25 publications

(13 citation statements)

References 33 publications

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“…Where Φ is the flux function, and S is the source term, respectively. Equations ( 5) and (6) show that the operator splitting approach splits equation (4) into a Lagrangian step, including the source and Eulerian steps containing the convective term. The CEL approach is used to solve these two equations in order.…”

Section: Model Descriptionmentioning

confidence: 99%

“…The most startling welding characteristics of different alloys are found in the current friction welded joining procedure, called friction stir welding (FSW) [1][2][3]. In a wide range of industrial applications, including those in the shipping, automotive, aerospace, marine, and robotics industries, FSW triumphs over all other traditional welding techniques [4][5][6]. FSW is one of the solid-state welding techniques that can produce joints between dissimilar alloys more efficiently than fusion welding techniques [7,8].…”

Section: Introductionmentioning

confidence: 99%

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Investigation of the effect of welding and rotational speed on strain and temperature during friction stir welding of AA5083 and AA7075 using the CEL approach

Akbari

RahimiAsiabaraki

Aliha³

2023

Eng. Res. Express

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In this study, the friction stir welding between AA5083 and AA7075 is modeled using numerical methods, and the role of parameters affecting the process, such as welding speed and rotation speed on material flow, temperature, and strain, is studied. The temperature, strain, and material mixing were analyzed while welding AA7075 to AA5083 alloys using a Coupled Eulerian-Lagrangian (CEL) approach. It was discovered that the CEL approach had accurately anticipated the mixing of materials in the stir zone (SZ) by comparing the SZ of the samples fabricated experimentally and modeled by simulation. Results show that the temperature and strain increase dramatically as the rotation speed increases from 500 to 900 rev/min. The material flow obtained from the simulation shows that with increasing rotational speed or decreasing welding speed, AA7075 is more stretched towards AA5083 in the sheet's higher surfaces, indicating an increase in material flow intensity. Better material mixing and increased material flow allowed for the achievement of the maximum tensile strength at the welding and rotation speeds of 36 mm/min and 900 rev/min.

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Section: Model Descriptionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigation of the effect of welding and rotational speed on strain and temperature during friction stir welding of AA5083 and AA7075 using the CEL approach

Akbari

RahimiAsiabaraki

Aliha³

2023

Eng. Res. Express

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“…The optimal toll parameters recommended by Hybrid multiobjective optimization are a probe diameter of 5.1 mm, a shoulder diameter of 17.63 mm, and a probe height of 3.86 mm. Akbari et al 11 modeling and optimized the tool parameters in friction stir welding of aluminum by using NSGA II and RSM techniques. Asadi et al 12 optimized FSW parameters of AZ91 alloy using Taguchi method.…”

Section: Literature Reviewmentioning

confidence: 99%

Optimization and ANFIS-based modeling of two step FSSW process parameters on tensile strength for triple-sheet joining of aluminum alloy

Kumar,

Maurya,

Sharma

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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In this paper, a potential technique is used to weld three sheets of AA 6082 through a two-step friction stir spot welding (TSFSSW). The optimal settings of the process parameters, namely, the rotational speed of the tool, dwell time, and plunge depth during welding have been analyzed. Taguchi’s L9 orthogonal array and ANOVA method is used to get proper material flow, appropriate heat conduction and the stir zone expansion, which helps in preparing sound joint. Microstructural tool analysis and fractography are performed by employing optical microscopy and Scanning Electron Microscopy (SEM). The tool was analyzed before and after use for heat effect along with the observation of the fracture behavior of the joint. To analyze the residual stresses developed in the joint, the XRD analysis is also carried out. The maximum tensile strength of 94.51 MPa was obtained under optimal parameters of the rotational speed of 1200 rpm, dwell time of 10 s, and plunge depth of 2.9 mm. The results of the ANFIS model revealed that a minor difference between experimental and model values (95.62) confirms the validation of the experiment. The resulting experimental findings of the ANFIS model were compared with other similar work done by researchers previously.

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“…According to the findings of the study, if steel specimens are placed in the pressure die casting process and the resulting specimens are then subjected to the FSW technique at the boundary of the AL and steel material, the joining strength can be attained as required. Akbari and Asiabaraki [102] optimized the forces generated by the FSW setup using a newly designed fixture. The forces produced by the FSW setup when welding the specimen were proportional to the joint strength, welding circumstances, and tool shape.…”

Section: Developments In Friction Stir Welding Tools and Their Designmentioning

confidence: 99%

A Review of Recent Developments in Friction Stir Welding for Various Industrial Applications

Bharti,

Kumar,

Singh

et al. 2023

JMSE

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Friction stir welding (FSW) has been recognized as a revolutionary welding process for marine applications, effectively tackling the distinctive problems posed by maritime settings. This review paper offers a comprehensive examination of the current advancements in FSW design, specifically within the marine industry. This paper provides an overview of the essential principles of FSW and its design, emphasizing its comparative advantages when compared with conventional welding techniques. The literature review reveals successful implementations in the field of shipbuilding and offshore constructions, highlighting design factors as notable enhancements in joint strength, resistance to corrosion, and fatigue performance. This study examines the progress made in the field of FSW equipment and procedures, with a specific focus on their application in naval construction. Additionally, it investigates the factors to be considered when selecting materials and ensuring their compatibility in this context. The analysis of microstructural and mechanical features of FSW joints is conducted, with a particular focus on examining the impact of welding settings. The study additionally explores techniques for mitigating corrosion and safeguarding surfaces in marine environments. The study also provides a forward-looking perspective by proposing potential areas of future research and highlighting the issues that may arise in the field of FSW for maritime engineering. The significance of incorporating environmental and economic considerations in the implementation of FSW for extensive marine projects is emphasized.

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Modeling and optimization of tool parameters in friction stir lap joining of aluminum using RSM and NSGA II

Cited by 25 publications

References 33 publications

Investigation of the effect of welding and rotational speed on strain and temperature during friction stir welding of AA5083 and AA7075 using the CEL approach

Investigation of the effect of welding and rotational speed on strain and temperature during friction stir welding of AA5083 and AA7075 using the CEL approach

Optimization and ANFIS-based modeling of two step FSSW process parameters on tensile strength for triple-sheet joining of aluminum alloy

A Review of Recent Developments in Friction Stir Welding for Various Industrial Applications

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