Indian Welding Journal

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Experimental Investigation on Mechanical Properties of Thick Dissimilar Light Weight Material Joints Fabricated by Friction Stir Welding


Affiliations
1 Vignana Bharathi Institute of Technology, Hyderabad, Telangana- 501301, India
2 School of Mechanical and Building Sciences, Vellore Institute of Technology, Chennai- 600127, India
     

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Friction stir welding (FSW) is a solid state technique used to join aluminum alloys effectively compared with other conventional welding methods. AA6061/AA2014 Al-alloys in dissimilar combination were processed for welding because they have significant demand in various engineering applications. The process parameters chosen for welding are tool rotational speed (710 to 1120 rpm), weld speed (20 to 40 mm/min) and pin profile (Triangular, Square and Pentagon) were arranged in L9 orthogonal array. The weld joint properties such as hardness and tensile strength were tested as per ASTM standard. The microstructure of weld profile was studied with optical, scanning electron microscopy. The welds processed at 900-20-S were exhibits higher properties such as UTS, YS and hardness as 191, 170 MPa, 110 HV respectively.

Keywords

Friction Stir Welding, AA6061/AA2014Al-alloys, Weld Parameters, Weld Properties.
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Abstract Views: 336

PDF Views: 4




  • Experimental Investigation on Mechanical Properties of Thick Dissimilar Light Weight Material Joints Fabricated by Friction Stir Welding

Abstract Views: 336  |  PDF Views: 4

Authors

R. Venkateswara Rao
Vignana Bharathi Institute of Technology, Hyderabad, Telangana- 501301, India
M. Senthil Kumar
School of Mechanical and Building Sciences, Vellore Institute of Technology, Chennai- 600127, India

Abstract


Friction stir welding (FSW) is a solid state technique used to join aluminum alloys effectively compared with other conventional welding methods. AA6061/AA2014 Al-alloys in dissimilar combination were processed for welding because they have significant demand in various engineering applications. The process parameters chosen for welding are tool rotational speed (710 to 1120 rpm), weld speed (20 to 40 mm/min) and pin profile (Triangular, Square and Pentagon) were arranged in L9 orthogonal array. The weld joint properties such as hardness and tensile strength were tested as per ASTM standard. The microstructure of weld profile was studied with optical, scanning electron microscopy. The welds processed at 900-20-S were exhibits higher properties such as UTS, YS and hardness as 191, 170 MPa, 110 HV respectively.

Keywords


Friction Stir Welding, AA6061/AA2014Al-alloys, Weld Parameters, Weld Properties.

References





DOI: https://doi.org/10.22486/iwj.v53i4.203671