Effect of Tool Parameters on Mechanical Properties of Friction Stir Welded Aluminum Alloy

Abstract:

The mechanical properties of weld joints in Friction Stir Welding (FSW) are influenced by the welding parameters such as rotational speed, tool geometry and welding speed. In the present study, three different tool profiles have been used to weld the joints with three different rotational speed and two welding speeds. Full factorial experiments have been conducted using DoE. The mechanical properties of weld joint were evaluated by means of tensile tests and hardness test at room temperature. The experiment result shows that the average highest number of hardness was 40.06 HRB with square tool at a rotational speed of 2000rpm while lowest hardness was 30.84 HRB with cylindrical threaded tool at rotational speed of 1800rpm. The maximum tensile strength of the joint obtained is 265 M Pa which is close to base material strength. It is observed from experimental results that joints made by square tool yield more strength compared to other tool profiles.

• Periodical: Applied Mechanics and Materials (Volume 786)
• Pages: 111-115
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.786.111
• Online since: August 2015
• Authors: Srinivasa Rao Pedapati*, G. Vimalan, Mokhtar Awang, A.M.A. Rani
• Keywords: Friction Stir Welding, Mechanical Properties, Rotational Speed, Tool Profile

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