Effect of Friction Stir Welding pin Shape on Mechanical Properties of AA6061 Alloy Weldment

Mohd Hasbullah Idris; Mohd Shamsul Husin

doi:10.4028/www.scientific.net/AMM.465-466.1309

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 465-466Effect of Friction Stir Welding pin Shape on...

Effect of Friction Stir Welding pin Shape on Mechanical Properties of AA6061 Alloy Weldment

Abstract:

The present study is aimed to determine the effect of friction stir welding pin; square and diamond shape on mechanical properties of butt joint AA6061 weldment. Welding was carried out at different plunge depths of 0.0, 0.2, 0.3 and 0.4 mm together with rotation and transverse speeds of 500 rpm and 40 mm/min, respectively. Material flow, tensile strength and hardness of the weldment were evaluated. The results indicated that joint properties were significantly affected by tool design. It was found that material flow was higher for diamond pin tool compared to that of square pin resulting in considerable increased in tensile strength of the joint. In addition, the highest tensile strength was obtained on the samples welded with square shape pin at 0.4 mm plunge depth whilst the lowest was by diamond shape at the plunge depth of 0.0 mm. Regardless of pin shape and plunge depth; asymmetrical hardness distribution was observed for all weldments. The highest hardness was found to be close to the weld line produced by the diamond shaped pin at 0.0 mm plunge depth.

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Periodical:

Applied Mechanics and Materials (Volumes 465-466)

Pages:

1309-1313

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.465-466.1309

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Online since:

December 2013

Authors:

Mohd Hasbullah Idris, Mohd Shamsul Husin

Keywords:

AA6061 Aluminum Alloy, Friction Stir Welding (FSW), Hardness, Material Flow, Pin Shape, Plunge Depth, Tensile Strength

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