scholarly journals Principles and Thermo-Mechanical Model of Friction Stir Welding

10.5772/50156 ◽  
2012 ◽  
Author(s):  
Jauhari Tahir ◽  
Jamaluddin Abdullah ◽  
Zuhailawati Hussain ◽  
Indra Putra
Keyword(s):  
Friction Stir Welding ◽  
Mechanical Model ◽  
Friction Stir ◽  
Model Of Friction

scholarly journals A Rotating Plug Model of Friction Stir Welding Heat Transfer

2008 ◽  
Vol 29 (3) ◽  
pp. 321-327 ◽  
Author(s):  
J. K. Raghulapadu ◽  
J. Peddieson ◽  
G. R. Buchanan ◽  
A. C. Nunes
Keyword(s):  
Heat Transfer ◽  
Friction Stir Welding ◽  
Friction Stir ◽  
Model Of Friction

Experiment and Simulation of Influence of Welding Parameters on Temperature in Friction Stir Welding

2010 ◽  
Vol 44-47 ◽  
pp. 76-80
Author(s):  
Lei Wang ◽  
Jian Jun Zhu
Keyword(s):  
Aluminum Alloy ◽  
Friction Stir Welding ◽  
Temperature Distribution ◽  
Welding Process ◽  
Welding Parameters ◽  
Fem Model ◽  
Friction Stir ◽  
Model Of Friction ◽  
Welding Technique ◽  
Good Agreement

Temperature distribution is the foundation to study friction stir welding technique, influence of welding parameters on temperature was studied through experiment measurement on AA2024-T4 aluminum alloy plates. An instantaneous relative linear velocity based heat source was utilized to build the FEM model of friction stir welding process, good agreement was observed between the measured and simulated thermal profiles. FEM model was also utilized to study effect of welding parameters on temperature distribution.

scholarly journals Controlling residual stress and distortion of friction stir welding joint by external stationary shoulder

2019 ◽  
Vol 38 (2019) ◽  
pp. 662-671 ◽  
Author(s):  
Weiliang He ◽  
Jinglin Liu ◽  
Wei Hu ◽  
Gongdong Wang ◽  
Wenjing Chen
Keyword(s):  
Residual Stress ◽  
Friction Stir Welding ◽  
Mechanical Model ◽  
Residual Stress Distribution ◽  
Butt Weld ◽  
Friction Stir ◽  
Welding Joint ◽  
Stationary Shoulder ◽  
Stress Region ◽  
Synchronous Rolling

AbstractFriction stir welding (FSW) can achieve a sound welding joint, but its residual stress and distortion cannot be avoided due to the non-uniformity of temperature distribution during welding. Stationary shoulder friction stir welding (SSFSW) was employed to butt weld 6005A-T6 aluminum alloy plates. The effects of welding speeds ranging from 200 mm/min to 600 mm/min on residual stress and distortion were investigated in detail. A thermo-mechanical model was utilized to compare the residual stress distribution between conventional FSW and SSFSW. SSFSW was beneficial to decreasing the peak temperature of stir zone (SZ) and then obtaining a narrower SZ. The peak residual stress produced by SSFSW was 50% lower than that by conventional FSW and a narrower tensile stress region was attained by SSFSW. Moreover, the stationary shoulder applied a function of synchronous rolling during the welding, which controlled the distortion effectively.

3-D Modeling & Numerical Simulation of Friction Stir Welding Process

2012 ◽  
Vol 488-489 ◽  
pp. 1189-1193 ◽  
Author(s):  
Barnik Saha Roy ◽  
Subhash Chandra Saha ◽  
John Deb Barma
Keyword(s):  
Friction Stir Welding ◽  
Material Flow ◽  
Mechanical Model ◽  
Equivalent Plastic Strain ◽  
Welding Process ◽  
Traverse Speed ◽  
Nonlinear Finite Element ◽  
Comsol Multiphysics ◽  
Friction Stir ◽  
Aa6061 Aluminium Alloy

A 3D thermal pseudo mechanical model formulated in an Eulerian frame considering a quassisteady approach to Friction Stir welding modeling of AA6061 Aluminium alloy is proposed and implemented using nonlinear finite element code in Comsol Multiphysics v 4.1. The effect of different operating parameters on the temperature distribution was analyzed. The material flow is found to be enhanced with the increase in traverse speed and angular velocity of the pin with a pronounced swirl on the advancing side. The distribution of equivalent plastic strain and dynamic viscosity was found to correlate with the distribution of the microstructure zones in the weld.

A thermal-plastic model of friction stir welding in aluminum alloy

2017 ◽  
Vol 24 (3) ◽  
pp. 439-446
Author(s):  
Zhang Peilei ◽  
Yan Hua ◽  
Li Chonggui ◽  
Yu Zhishui ◽  
Lu Qinghua
Keyword(s):  
Plastic Deformation ◽  
Friction Stir Welding ◽  
Three Dimensional ◽  
Transfer Model ◽  
Friction Stir ◽  
Tool Shoulder ◽  
Moving Coordinate ◽  
Model Of Friction ◽  
Tool Pin ◽  
Good Agreement

AbstractA three-dimensional heat transfer model for friction stir welding is presented in this paper. A moving coordinate was introduced to reduce the difficulty of modeling the moving tool. Heat input from the tool shoulder and the tool pin were considered in the model. The plastic deformation heat was introduced into the model, too. It is clear that the heat production increased owing to plastic deformation, and this process depends on the stress level. Temperature measurement experiments were done to validate the calculated results. The calculated results were in good agreement with the experimental results. Preheating the workpiece is beneficial to obtain a good weld seam.

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