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Friction stir welding of dissimilar metal

Sahidi, Sujanuriah (2013) Friction stir welding of dissimilar metal. Masters thesis, Universiti Tun Hussein Onn Malaysia.

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Abstract

Friction Stir Welding is a solid – state thermo – mechanical joining process (a combination of extruding and forging). Joining of steels to aluminium alloys can be used for producing steel/aluminium bimetallic parts in a wide range of industrial areas. The overall aim of this study is to get the optimum parameters for the materials under considerations, to investigate the Heated Affected Zone (HAZ), Thermo – Mechanical Affected Zone (TMAZ) and Weld Nugget (WN) besides to study the defects occurring during welding process by applying different parameters chosen. The welding process was done by using conventional milling machine. Three experiments being used are the Tensile Testing, Optical Microscopy (OM) and Electron Scanning Microscopy (SEM) to get the strength of the joint and the metallographic studies. The findings also found out that suitable parameters being choose give less defect and intermetallic compounds (IMCs). Therefore, at higher speed and lower tool plunge length, the joint strength decreased due to lack of bonding between aluminium and steel.

Item Type: Thesis (Masters)
Subjects: T Technology > TS Manufactures > TS200-770 Metal manufactures. Metalworking
Depositing User: Normajihan Abd. Rahman
Date Deposited: 03 Sep 2014 01:12
Last Modified: 03 Sep 2014 01:12
URI: http://eprints.uthm.edu.my/id/eprint/5659
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