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Experimental Investigations on the Influence of the Position of Plates in FSW for Dissimilar Aluminium Alloys


Affiliations
1 JNTUH, Dept of Mechanical Engg., M.V.S.R. Engg College, Nadergul, Hyderabad, India
2 Non Ferrous Materials Technology Development Centre, Kanchanbagh, Hyderabad, India
3 Dept, of Mechanical Engg., College of Engg., JNTUH, Kukatpally, Hyderabad, India
4 PRRM Engg. College, Shabad, R.R. District, Andhrapradesh, India
     

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Friction Stir Welding (FSW) is an innovative and promising solid state joining process invented by The Welding Institute (TWI). It is considered to be one of the most significant developments in metal joining technology over the lost two decodes. FSW experiments were conducted on 6mm thick AA6061 and AA7075 aluminum plates by changing the position of the plates on advancing and retreating sides of the joint. Characterisation of the mechanical and metallurgical properties shows a strong influence of the plate positions in the weld joint strength. An in-depth analysis of the results indicates the difference in mechanical and metallurgical properties of the weldments due to the intermetollic compound (IMC) formed, with change in position of plates.

Keywords

FSW, AA6061, AA7075, Plate Position, Mechanical Properties, Macrostructures, Proctography.
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  • Experimental Investigations on the Influence of the Position of Plates in FSW for Dissimilar Aluminium Alloys

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Authors

J. Kandasamy
JNTUH, Dept of Mechanical Engg., M.V.S.R. Engg College, Nadergul, Hyderabad, India
M. Govindaraju
Non Ferrous Materials Technology Development Centre, Kanchanbagh, Hyderabad, India
M. Manzoor Hussain
Dept, of Mechanical Engg., College of Engg., JNTUH, Kukatpally, Hyderabad, India
S. Rajesham
PRRM Engg. College, Shabad, R.R. District, Andhrapradesh, India

Abstract


Friction Stir Welding (FSW) is an innovative and promising solid state joining process invented by The Welding Institute (TWI). It is considered to be one of the most significant developments in metal joining technology over the lost two decodes. FSW experiments were conducted on 6mm thick AA6061 and AA7075 aluminum plates by changing the position of the plates on advancing and retreating sides of the joint. Characterisation of the mechanical and metallurgical properties shows a strong influence of the plate positions in the weld joint strength. An in-depth analysis of the results indicates the difference in mechanical and metallurgical properties of the weldments due to the intermetollic compound (IMC) formed, with change in position of plates.

Keywords


FSW, AA6061, AA7075, Plate Position, Mechanical Properties, Macrostructures, Proctography.