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Effect of welding tool geometry on microstructure and hardness in Friction Stir Welded Plates

Faizul Azizi b. Ahmad Nordin, Faizul Azizi (2010) Effect of welding tool geometry on microstructure and hardness in Friction Stir Welded Plates. Universiti Teknologi Petronas. (Unpublished)

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Friction Stir Welding is a solid state welding process for joining aluminum and other metallic alloys where the metal is not melted during the process and the original metal characteristic remains unchanged as far as possible. It was invented in 1991 in The Welding Institute (TWI), United Kingdom to substitute conventional welding of aluminum alloy. Friction Stir Welding can be use in shipbuilding marine, aerospace industry and railway industries. The welding parameters and tool pin profile play a major role in defining the weld quality. This report covers the theoretical background of friction stir welding, literature reviews on related research works, implemented methodology, and current results. The objective of the project is to study the effect of welding tool geometry on the microstructure and hardness of welded plates. The project will focus on three types of pin design which are straight cylindrical, threaded cylindrical and tapered. The tools are fabricated using CNC Machine and undergo heat treatment. Two plates of aluminum alloy work piece were set-up in butt joint configuration and clamped rigidly during welding operation. The work pieces are welded using different type of welding tool pin profile and different sets of parameters. Welded work pieces that have been welded by the designed tools were undergo lab testing which are hardness and microstructure test in order to rectify the difference of the weld results. From this project, it can be observed that different geometry of tool will produce different weld results

Item Type: Final Year Project
Subject: T Technology > TJ Mechanical engineering and machinery
Divisions: Engineering > Mechanical
Depositing User: Users 5 not found.
Date Deposited: 11 Jan 2012 12:23
Last Modified: 25 Jan 2017 09:43
URI: http://utpedia.utp.edu.my/id/eprint/1457

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