Effect of tool axis offset and geometry of tool pin profile on the characteristics of friction stir welded dissimilar joints of aluminum alloy AA5052 and HSLA steel

2015 ◽  
Vol 639 ◽  
pp. 219-233 ◽  
Author(s):  
K.K. Ramachandran ◽  
N. Murugan ◽  
S. Shashi Kumar
Keyword(s):  
Aluminum Alloy ◽  
Hsla Steel ◽  
Dissimilar Joints ◽  
Friction Stir ◽  
Tool Pin Profile ◽  
Tool Axis ◽  
Tool Pin ◽  
Axis Offset

Optimization of process parameters for friction stir welding of joining A6061 and A6082 alloys by Taguchi method

2012 ◽  
Vol 227 (6) ◽  
pp. 1150-1163 ◽  
Author(s):  
Sanjay Kumar ◽  
Sudhir Kumar ◽  
Ajay Kumar
Keyword(s):  
Tensile Strength ◽  
Friction Stir Welding ◽  
Process Parameters ◽  
Rotational Speed ◽  
Experimental Tests ◽  
Dissimilar Joints ◽  
Friction Stir ◽  
Tool Pin Profile ◽  
Optimization Of Process Parameters ◽  
Tool Pin

The friction stir welding is a pioneering solid-state metal joining technique for producing high-quality joints in materials. In this article, Taguchi approach is applied to analyze the optimal process parameters for optimum tensile strength and hardness of welded dissimilar A6061 and A6082 alloys. An orthogonal array of L9 is implemented and the analysis of variance is employed to investigate the importance of parameters on responses. The experimental tests, conducted according to combination of rotational speed, tool tilt and types of tool pin profile parameters. The results indicate that the rotational speed is most significant process parameter that has the highest influence on tensile strength and hardness, followed by tool pin profile and tool tilt. The optimum results verified by conducting confirmation experiments. The predicted optimal value of tensile strength and hardness of dissimilar joints produced by friction stir welding are 267.74 MPa and 80.55 HRB, respectively.

Effect of tool pin profile on friction stir welding of AA5083 aluminum alloy

2020 ◽  
Author(s):  
H. A. Tahar ◽  
M. F. A. Zaharuddin ◽  
S. Sharif ◽  
P. Y. M. W. Ndaruhadi
Keyword(s):  
Aluminum Alloy ◽  
Friction Stir Welding ◽  
Friction Stir ◽  
Tool Pin Profile ◽  
Aa5083 Aluminum Alloy ◽  
Tool Pin

Effect of Process Parameters on Mechanical Characterization of Dissimilar Friction Stir Welded Aluminium Alloys

2015 ◽  
Vol 766-767 ◽  
pp. 701-704
Author(s):  
R. Ramesh ◽  
S. Suresh Kumar ◽  
R.V. Srinivasan
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Aluminum Alloy ◽  
Process Parameters ◽  
Weight Ratio ◽  
Welding Parameters ◽  
Friction Stir ◽  
Tool Pin Profile ◽  
Axial Forces ◽  
Tool Pin

Aluminum alloys exhibit poor weldability by conventional fusion welding process. The heat treatable aluminum alloy AA2014 is extensively used in the aircraft industry because it has good ductility and high strength to weight ratio. In this paper the effects of welding parameters and tool profile on the mechanical properties of friction stir welded butt joints of dissimilar aluminum alloy sheets AA6082 and AA2014. The process parameters such as rotational speed, transverse speed and axial forces were considered. The effect of parameters on weld quality was analyzed. Hardness and tensile tests are carried out at room temperature to examine the mechanical properties of the welded joints. The joints produced with straight square tool pin profile have higher ultimate tensile strength, whereas the straight cylindrical tool pin profile results in lower tensile strength.

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