Numerical Simulation and Experimental Investigation of Friction Stir Rivet Welding Process for AA6061-T6

2021 ◽  
Author(s):  
Peng Zhang ◽  
Shengdun Zhao ◽  
Wenwen Wang ◽  
Haixia Zhang ◽  
Jiaying Zhang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Experimental Investigation ◽  
Welding Process ◽  
Friction Stir

Experimental investigation and numerical simulation of the friction stir spot welding process

Mechanika ◽  
2016 ◽  
Vol 22 (1) ◽  
Author(s):  
S. Kilikevičius ◽  
R. Česnavičius ◽  
P. Krasauskas ◽  
R. Dundulis ◽  
J. Jaloveckas
Keyword(s):  
Numerical Simulation ◽  
Experimental Investigation ◽  
Spot Welding ◽  
Welding Process ◽  
Friction Stir Spot Welding ◽  
Friction Stir

Thermo-mechanical modelling of the Friction Stir Spot Welding process: Effect of the friction models on the heat generation mechanisms

2022 ◽  
pp. 146442072110709
Author(s):  
Nasra Hannachi ◽  
Ali Khalfallah ◽  
Carlos Leitão ◽  
Dulce Rodrigues
Keyword(s):  
Numerical Simulation ◽  
Heat Generation ◽  
Spot Welding ◽  
Welding Process ◽  
Friction Stir Spot Welding ◽  
Frictional Heat ◽  
Contact Conditions ◽  
Friction Stir ◽  
Friction Models ◽  
Generation Mechanisms

Friction Stir Spot Welding involves complex physical phenomena, which are very difficult to probe experimentally. In this regard, the numerical simulation may play a key role to gain insight into this complex thermo-mechanical process. It is often used to mimic specific experimental conditions to forecast outputs that may be substantial to analyse and elucidate the mechanisms behind the Friction Stir Spot Welding process. This welding technique uses frictional heat generated by a rotating tool to join materials. The heat generation mechanisms are governed by a combination of sliding and sticking contact conditions. In the numerical simulation, these contact conditions are thoroughly dependent on the used friction model. Hence, a successful prediction of the process relies on the appropriate selection of the contact model and parameters. This work aims to identify the pros and cons of different friction models in modelling combined sliding-sticking conditions. A three-dimensional coupled thermo-mechanical FE model, based on a Coupled Eulerian-Lagrangian formulation, was developed. Different friction models are adopted to simulate the Friction Stir Spot Welding of the AA6082-T6 aluminium alloy. For these friction models, the temperature evolution, the heat generation, and the plastic deformation were analysed and compared with experimental results. It was realized that numerical analysis of Friction Stir Spot Welding can be effective and reliable as long as the interfacial friction characteristics are properly modelled. This approach may be used to guide the contact modelling strategy for the simulation of the Friction Stir Spot Welding process and its derivatives.

Numerical simulation of friction stir welding process

2009 ◽  
Vol 2 (S1) ◽  
pp. 383-386 ◽  
Author(s):  
Dongun Kim ◽  
Harsha Badarinarayan ◽  
Ill Ryu ◽  
Ji Hoon Kim ◽  
Chongmin Kim ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Friction Stir Welding ◽  
Welding Process ◽  
Friction Stir ◽  
Friction Stir Welding Process

Numerical simulation of friction stir butt welding process for AA5083-H18 sheets

2010 ◽  
Vol 29 (2) ◽  
pp. 204-215 ◽  
Author(s):  
Dongun Kim ◽  
Harsha Badarinarayan ◽  
Ji Hoon Kim ◽  
Chongmin Kim ◽  
Kazutaka Okamoto ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Welding Process ◽  
Butt Welding ◽  
Friction Stir

Temperature Distribution of Aluminum Alloys under Friction Stir Welding

2011 ◽  
Vol 264-265 ◽  
pp. 217-222 ◽  
Author(s):  
Ben Yuan Lin ◽  
P. Yuan ◽  
Ju Jen Liu
Keyword(s):  
Numerical Simulation ◽  
Temperature Distribution ◽  
Cross Section ◽  
Base Material ◽  
Welding Process ◽  
Measuring System ◽  
Close Correspondence ◽  
Distribution Profile ◽  
Butt Welding ◽  
Friction Stir

The temperature distribution of 6061-T6 aluminum alloy plates under a friction stir butt-welding was investigated by using experiment and numerical simulation. A real-time temperature measuring system was used to measure the temperature change in the welding process. Vickers hardness profiles were made on the cross-section of the weld after welding. A commercial software of FlexPDE, a solver for partial different equations with finite element method, was used to simulate the experimental welding process of this study. Comparison the experimental and numerical results, the temperature cycles calculated by numerical are similar to those measured by experiment. The temperature distribution profile obtained from the numerical simulation is symmetrical to the weld center and has a close correspondence with the hardness configuration and the microstructure of the weld. The region with the temperature over 300 °C is the zone of softening within the boundaries of base material and HAZ. The regions of 350 °C with minimum hardness are located near the boundary of HAZ and TMAZ. The maxima temperature about 500 °C distributes around the upper part of the weld center. However, the region above 400 °C only matches with the upper half of the weld nugget.

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