Friction Stir Welding of Al Alloys: Analysis through a Multi-Objective Optimization Tool

2014 ◽  
Vol 783-786 ◽  
pp. 1729-1734
Author(s):  
P. Cavaliere
Keyword(s):  
Friction Stir Welding ◽  
Welding Process ◽  
Processing Parameters ◽  
Multi Objective Optimization ◽  
Friction Stir ◽  
Multi Objective ◽  
Crack Behavior ◽  
Joining Technology ◽  
Mechanical Performances ◽  
Solid State Joining

Friction Stir Welding is a well known solid state joining technology. Many processing conditions and materials properties affect the microstructural evolution and mechanical behavior of the produced joints. The main parameters involved in the welding process have been studied and the results presented in the present paper. The fatigue life and crack behavior of several aluminum alloys FSW joints have been presented. The analysis was conducted through a multi-objective optimization tool capable of correlating all the material properties and processing parameters to the final mechanical performances of the welds.

scholarly journals Friction Stir Welding of Aerospace Alloys

2019 ◽  
Vol 48 (1) ◽  
pp. 37-46
Author(s):  
Akshansh Mishra ◽  
Devarrishi Dixit
Keyword(s):  
Friction Stir Welding ◽  
Welding Process ◽  
Space Vehicles ◽  
Friction Stir ◽  
Aerospace Applications ◽  
Aerospace Alloys ◽  
Fuel Tanks ◽  
Higher Temperature ◽  
Solid State Joining ◽  
Joining Process

Friction Stir Welding (FSW) is a solid state joining process which possesses a great potential to revolutionise the aerospace industries. Distinctive materials are selected as aerospace alloys to withstand higher temperature and loads. Sometimes these alloys are difficult to join by a conventional welding process but they are easily welded by FSW process. The FSW process in aerospace applications can be used for: aviation for fuel tanks, repair of faulty welds, cryogenic fuel tanks for space vehicles. Eclipse Aviation, for example, has reported dramatic production cost reductions with FSW when compared to other joining technologies. This paper will discuss about the mechanical and microstructure properties of various aerospace alloys which are joined by FSW process.

EFFECT OF PRE-HEATING ON THE MECHANICAL PROPERTIES OF FRICTION STIR WELDING FOR 6061 ALUMINUM ALLOY

2021 ◽  
Vol 25 (Special) ◽  
pp. 2-124-2-134
Author(s):  
Omer T. Abbas ◽  
◽  
Abbas A. Ayoub ◽  
Fouad A. Saleh ◽  
◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Friction Stir Welding ◽  
Welding Process ◽  
Fusion Welding ◽  
Friction Stir ◽  
Aluminum Alloy 6061 ◽  
Wide Range ◽  
Wrought Aluminum ◽  
Solid State Joining ◽  
Alloy 6061

Friction stir welding (FSW) process is a solid-state joining invented via the Welding Institute in 1991 at a great rate emerging as an application by fusion welding for joining different alloys. The wrought aluminum alloy 6061 is heat treatable and possesses a high corrosion resistance. This alloy has been used in a wide range of applications, like arenas gymnasiums and trains bodies. Aluminum alloy 6061 cannot be easily welded by the conventional fusion welding process because of the cracks that make the mechanical of welding joint very weak. In FSW, many parameters effect on its welding process. In the present research, the pre-heating effect on the aluminum 6061 sheet at 100°C and 150°C was studied. This heat has to be given for obtaining a defect-free as well as quality joint. Result manifested that the welding without pre-heating the parent metal at a (1120 r.p.m) rotational speed and a (30 mm/min) welding speed gave the best result of the ultimate tensile strength (236 N/mm2).

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