Influence of welding parameters and tool pin profile on microstructure and mechanical properties along the thickness in a friction stir welded aluminum alloy

2013 ◽  
Vol 47 ◽  
pp. 599-606 ◽  
Author(s):  
Weifeng Xu ◽  
Jinhe Liu ◽  
Hongqiang Zhu ◽  
Li Fu
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Welding Parameters ◽  
Friction Stir ◽  
Tool Pin Profile ◽  
Microstructure And Mechanical Properties ◽  
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.

scholarly journals Effect of Tool Geometry and Welding Speed on Mechanical Properties and Microstructure of Friction Stir Welded Joints of Aluminium Alloys AA6082-T6

2014 ◽  
Vol 61 (3) ◽  
pp. 455-468
Author(s):  
Hiralal Subhash Patil ◽  
Sanjay N. Soman
Keyword(s):  
Mechanical Properties ◽  
Welding Speed ◽  
Welded Joints ◽  
Aluminium Alloys ◽  
Tensile Tests ◽  
Tool Geometry ◽  
Welding Parameters ◽  
Friction Stir ◽  
Tool Pin Profile ◽  
Tool Pin

Abstract Friction stir welding is a solid state innovative joining technique, widely being used for joining aluminium alloys in aerospace, marine automotive and many other applications of commercial importance. The welding parameters and tool pin profile play a major role in deciding the weld quality. In this paper, an attempt has been made to understand the influences of welding speed and pin profile of the tool on friction stir welded joints of AA6082-T6 alloy. Three different tool pin profiles (tapered cylindrical four flutes, triangular and hexagonal) have been used to fabricate the joints at different welding speeds in the range of 30 to 74 mm/min. Microhardness (HV) and tensile tests performed at room temperature were used to evaluate the mechanical properties of the joints. In order to analyse the microstructural evolution of the material, the weld’s cross-sections were observed optically and SEM observations were made of the fracture surfaces. From this investigation it is found that the hexagonal tool pin profile produces mechanically sound and metallurgically defect free welds compared to other tool pin profiles.

Effect of welding parameters on microstructure and mechanical properties of friction stir welded Al 6061 aluminum alloy joints

2020 ◽  
Vol 25 ◽  
pp. 563-569 ◽  
Author(s):  
Saket Choudhary ◽  
Sahaj Choudhary ◽  
Siddharth Vaish ◽  
Avani Kumar Upadhyay ◽  
Amneesh Singla ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Welding Parameters ◽  
6061 Aluminum Alloy ◽  
Friction Stir ◽  
Al 6061 ◽  
Microstructure And Mechanical Properties
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