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Study on Microstructure and Strength of Friction Stir Spot Welding On Copper Alloy Sheet

Shamsudin, Nurfarahin (2011) Study on Microstructure and Strength of Friction Stir Spot Welding On Copper Alloy Sheet. Universiti Teknologi Petronas. (Unpublished)

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Abstract

Friction Stir Spot Welding is the derivative of Friction Stir Welding (FSSW). It is a solidstate joining process of metal sheets with the thickness not more than 3 rnrn. Most of the process is being used in the automotive industry. FSSW is a process without lateral movement of the tool compared to Friction Stir Welding. Two sheets of different combinations of material were welded by using the FSSW process. The thickness of the sheet 0.9 rnrn. The combinations of material are Aluminum alloy to Aluminum alloy, Copper Alloy to Copper Alloy and Copper Alloy to Aluminum alloy. For each of the combination, the tool rotational speed were varied with 2000, 3000, 4000 rpm each. Then, 3 samples of welded sheets with tool rotational speed of 3000 rpm were observed on the microstructure using the optical microscope. Three different welded areas of affected by the FSSW were seen under the microscope to be characterized. The other samples were taken to be tested on the tensile strength using the Universal Tensile Strength Machine. The load resulted from the test were calculated to get the value of tensile strength for the welding process.

Item Type: Final Year Project
Academic Subject : Academic Department - Mechanical Engineering - Manufacturing - Welding - Metal welding
Subject: T Technology > TJ Mechanical engineering and machinery
Divisions: Engineering > Mechanical
Depositing User: Users 2053 not found.
Date Deposited: 09 Oct 2013 11:07
Last Modified: 25 Jan 2017 09:42
URI: http://utpedia.utp.edu.my/id/eprint/8690

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