Friction stir welding of dissimilar metal
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...
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| Format: | Thesis |
| Language: | English English |
| Published: |
2013
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/2133/1/24p%20SUJANURIAH%20SAHIDI.pdf http://eprints.uthm.edu.my/2133/2/SUJANURIAH%20SAHIDI%20WATERMARK.pdf |
| Summary: | 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. |
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