Design of a support system for a re-configured milling machine to achieve friction stir welds
- Authors: Akinlabi, Esther Titilayo , Levy, Adrian C. S. , Akinlabi, Stephen A.
- Date: 2013
- Subjects: Friction Stir Welding , Friction stir welds
- Type: Article
- Identifier: uj:4830 , ISSN 2078-0966 , http://hdl.handle.net/10210/12423
- Description: The detailed design of a clamping and support system for a reconfigured milling machine to produce friction stir welds is reported in this paper. Two different concepts were considered and subjected to performance evaluation. The selected design concept is expected to effectively clamp and support the workpiece during the process of friction stir welding to achieve a good integrity.
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Effect of FSW on the mechanical properties and microstructure of 6082-T6 AA
- Authors: Akinlabi, S.A. , Mashinini, M.P. , Fatoba, S.O. , Akinlabi, Esther Titilayo
- Date: 2018
- Subjects: Friction Stir Welding , Heat Input , Joint Efficiency
- Language: English
- Type: Conference proceeding
- Identifier: http://hdl.handle.net/10210/290944 , uj:31593 , Citation: Akinlabi, S.A. et al. 2018. Effect of FSW on the mechanical properties and microstructure of 6082-T6 AA.
- Description: Abstract: This paper reports the effect of Friction Stir Welding on the mechanical properties and microstructure of 6082- T6 Aluminium alloy. The welds were produced using three different transverse speeds of 90, 120 and 150m/min to vary the heat input to the wields. The rotational speed of 750rpm is constant for the three welds samples, plunge depth of 0.31mm and tool tilt angle of 3 degrees was employed. The mechanical properties were characterised by the tensile analysis, the microhardness and joint efficiency of the welded interface. The microstructures, macrostructures, fracture surface and grain sizes were characterised. The result revealed that tensile strength at the joint interfaces of the three samples was enhanced as the transverse speed increases from 90m/min to 150m/min. The joint efficiency of the joint interfaces of the three welded samples increases. The Vickers hardness values at the joint interfaces were enhanced for the three samples when compared with the base material. This is attributed to the strain hardening phenomenon. The resulting microstructural characterization shows that good metallurgical bonding was achieved at the joint interfaces of the welds produced, this is evident with the presence of the transition region separating the advancing side from the retreating side of the joint interfaces.
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