scholarly journals Influence of kinematic factors of friction stir welding on the characteristics of welded joints of forged plates made of EN AW 7049 A aluminium alloy

2017 ◽  
Vol 24 (3) ◽  
Keyword(s):  
Friction Stir Welding ◽  
Aluminium Alloy ◽  
Welded Joints ◽  
Friction Stir

Effects of Tool Pin Profile and Tool Shoulder Diameter on the Tensile Behaviour of Friction Stir Welded Joints of Aluminium Alloys

2014 ◽  
Vol 984-985 ◽  
pp. 586-591 ◽  
Author(s):  
R. Ashok Kumar ◽  
M.R. Thansekhar
Keyword(s):  
Friction Stir Welding ◽  
Aluminium Alloy ◽  
Tensile Properties ◽  
Welded Joints ◽  
Tensile Behaviour ◽  
Light Weight ◽  
Friction Stir ◽  
Tool Shoulder ◽  
Shoulder Diameter ◽  
Weight Structures

— For fabricating light weight structures, it requires high strength-to weight ratio. AA6061 aluminium alloy is widely used in the fabrication of light weight structures. A356 aluminium alloy has wide spread application in aerospace industries. Friction stir welding is solid state joining process which is conducting for joining similar and dissimilar materials. The friction stir welding parameters play an important role for deciding the strength of welded joints. In this investigation, A356 and AA6061 alloys were friction stir welded by varying triangular, square, hexagonal pin profiles of tool keeping the remaining parameters same and AA6061 alloys were friction stir welded by varying tool shoulder diameter as 12mm,15mm,18mm without changing other parameters. Tensile properties of each joint have been analyzed microscopically. From the experimental results, it is observed that hexagonal pin profiled tool and 15mm shoulder diameter tool provides higher tensile properties when compared to other tools.

Modeling and Analysis of Friction Stir Welding and Underwater Friction Stir Welding of Aluminium Alloy: A Review

2017 ◽  
Vol 867 ◽  
pp. 127-133 ◽  
Author(s):  
S. Shanavas ◽  
J. Edwin Raja Dhas
Keyword(s):  
Friction Stir Welding ◽  
Aluminium Alloy ◽  
Welded Joints ◽  
Energy Efficient ◽  
Modeling And Analysis ◽  
Friction Stir ◽  
Surface Method ◽  
Underwater Friction Stir Welding ◽  
Solid State Joining ◽  
Joining Process

The welding of aluminium and its alloys was a great challenge for researchers and technologists till 1991. Friction stir welding (FSW), a relatively new solid state joining process was first patented in 1991 by Thomas et. al. from ‘The welding Institute (TWI), England. Later its application found in various industries like aerospace, marine, automobile, etc. due to its high quality joints. The technique is energy efficient, ecofriendly and versatile too. In this review article, the modeling and analysis of friction stir welding and underwater friction stir welding (UFSW) of aluminium alloy are addressed. Commonly used method for modeling and analysis of welded joints such as Taguchi method and Response surface method (RSM) are considered for the review. Finally an attempt has been made to compare UFSW welded joints with FSW welded joints.

scholarly journals Mechanical Properties and Microstructural Characterization of Dissimilar Friction Stir Welded AA5083 and AA6061 Aluminium Alloys

Mechanika ◽  
2020 ◽  
Vol 26 (6) ◽  
pp. 545-552
Author(s):  
Sasi Lakshmikhanth RAJASEELAN ◽  
Subbaiah KUMARASAMY
Keyword(s):  
Mechanical Properties ◽  
Friction Stir Welding ◽  
Aluminium Alloy ◽  
Welded Joints ◽  
Aluminium Alloys ◽  
Microstructural Analysis ◽  
Testing Machine ◽  
Welding Process ◽  
Fusion Welding ◽  
Friction Stir

Solidification is one of the major issues that was faced during the fusion welding of dissimilar non-heat treatable and heat treatable aluminium alloys. To overcome this issue Friction Stir Welding played a very vital role, since it is a solid state welding process. In the current study, dissimilar friction stir welding was carried out between non heat-treatable aluminium alloy AA5083-H111 and heat-treatable aluminium alloy AA6061-T6. The microstructural analysis and the mechanical properties of the dissimilar friction stir welded aluminium alloy AA5083-H111 and AA6061-T6 have been investigated. Both optical microscopy and scanning electron microscopy was used to evaluate the microstructural features. The elemental analysis was carried out using SEM-EDX. The tensile properties are studied using Universal Testing Machine. Hardness at various zones of the welded joints was measured using Vicker’s Hardness Testing Machine. The mechanical properties of the friction stir welded joints were correlated with the microstructure of the dissimilar welded joints.

Impact of Selected FSW Process Parameters on Mechanical Properties of 6082-T6 Aluminium Alloy Butt Joints

2011 ◽  
Vol 56 (4) ◽  
pp. 965-973 ◽  
Author(s):  
K. Krasnowski ◽  
P. Sędek ◽  
M. Łomozik ◽  
A. Pietras
Keyword(s):  
Mechanical Properties ◽  
Friction Stir Welding ◽  
Aluminium Alloy ◽  
Process Parameters ◽  
Welded Joints ◽  
Fatigue Tests ◽  
Butt Joints ◽  
Friction Stir ◽  
Shoulder Geometry ◽  
The Impact

Impact of Selected FSW Process Parameters on Mechanical Properties of 6082-T6 Aluminium Alloy Butt Joints In the friction stir welding (FSW) process a rotating and travelling tool equipped with a specially designed probe is slowly plunged into joined materials, plasticizes and stirs them thus forming a joint. Various geometric shapes of stirring tools make the motion of plasticized material very complex, which, in turn, translates to the structure and mechanical properties of joints. The article presents the results of tests focused on the impact of selected FSW process parameters on the mechanical properties of butt welded joints made of 6082 aluminium alloy. The tests were performed at various linear welding speeds, using singleand double-sided test joints welded with three types of stirring tools, differing in probe and shoulder geometry. The article reveals the results of mechanical and fatigue tests of the FSW joints.

Special features of the formation of welded joints in friction stir welding of V-1469 aluminium alloy

2013 ◽  
Vol 27 (7) ◽  
pp. 565-571 ◽  
Author(s):  
V.I. Lukin ◽  
E.N. Ioda ◽  
A.V. Bazeskin ◽  
V.P. Lavrenchuk ◽  
V.V. Ovchinnikov ◽  
...  
Keyword(s):  
Friction Stir Welding ◽  
Aluminium Alloy ◽  
Welded Joints ◽  
Friction Stir

The Friction Stir Welding of Cylindrical Components

2013 ◽  
Vol 554-557 ◽  
pp. 1075-1082
Author(s):  
Carlo Bruni ◽  
Saverio Zitti
Keyword(s):  
Friction Stir Welding ◽  
Aluminium Alloy ◽  
Rotational Velocity ◽  
Tangential Velocity ◽  
Research Activity ◽  
Friction Stir ◽  
Relevant Effect

The present research activity aims at studying different conditions for the circumferential friction stir welding of cylindrical components in aluminium alloy. Different parameters have been considered, such as the rotational velocity of the tool, the tangential velocity of the cylindrical elements and the number of welding passes. The obtained data have been analysed and the strength of each joint modelled. It has been observed a relevant effect of the combination between the rotational velocity of the tool and the tangential velocity of the cylindrical components on the strength of the joint.

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