A Thermo-Fluid Analysis of the Friction Stir Welding Process

2007 ◽  
pp. 3832-3837
Author(s):  
D. Jacquin ◽  
C. Desrayaud ◽  
Frank Montheillet
2007 ◽  
Vol 539-543 ◽  
pp. 3832-3837 ◽  
Author(s):  
D. Jacquin ◽  
Christophe Desrayaud ◽  
Frank Montheillet

The thermo-mechanical simulation of Friction Stir Welding focuses the interest of the welding scientific and technical community. However, literature reporting material flow modeling is rather poor. The present work is based on the model developed by Heurtier [2004] and aims at improving this thermo-fluid simulation developed by means of fluid mechanics numerical and analytical velocity fields combined together. These various velocity fields are investigated separately and especially according to the power dissipated during the flow. Boundary conditions are considered through a new approach based on the kinematic analysis of the thread of the pin. An equilibrium is established between the vertical motion of the bulk material dragged in the depth of the metal sheet, and its partial circulation around the pin. The analyses of the obtained velocity fields enable the understanding of the welded zone asymmetry and highlights the bulk material mixing between the welded coupons in the depth of the sheet. A regression is performed on the relative sliding velocity of the aluminium according to the surface of the tool: shoulder and pin. Two dimension flow lines in the depth of the metal sheet are then obtained and successfully compared with the results obtained by Colegrove (2004) [1].


2016 ◽  
Vol 693 ◽  
pp. 1339-1345
Author(s):  
Hong Feng Wang ◽  
J.L. Wang ◽  
W.W. Song ◽  
Dun Wen Zuo ◽  
Q.Q. Zhu

In this paper, the dynamometer for measuring the forces of the tool in FSW process was designed. The design principle of the dynamometer was adopted octagonal ring deformation to get the forces in FSW process. The design dynamometer was calibrated, the result showed the linearity and cross sensitivity of the dynamometer in allowed range, the worked reliable of the dynamometer was good. It can be used to measure the forces in FSW process.


2022 ◽  
Vol 73 ◽  
pp. 17-25
Author(s):  
Peng Gong ◽  
Yingying Zuo ◽  
Shude Ji ◽  
Dejun Yan ◽  
Zhen Shang

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