Citation

Kok, Chee Kuang and Sued, Mohammad Kamil and Liew, Kia Wai and Jayazerli, Moumen Mahmood and Perumal, Logah and Samylingam, Lingenthiran and Ooi, Chin Chin (2025) Micro-Friction Stir Lap Welding of Aluminum and Copper: A Short Review. Engineering, Technology & Applied Science Research, 15 (2). pp. 22004-22014. ISSN 2241-4487

Text Micro-Friction Stir Lap Welding of Aluminum and Copper_ A Short Review _ Engineering, Technology & Applied Science Research.pdf - Published Version Restricted to Repository staff only Download (5MB)

Abstract

This review article examines the recent progress in Micro-Friction Stir Lap Welding (μFSLW) of Al-Cu thin sheets, comparing the differences in tool geometry and processing parameters of macro-scale and micro-scale Friction Stir Lap Welding (FSLW) of Al-Cu plates. The effect of microstructural evolution, intermetallic formation, hardness distribution, mechanical joint strength, and electrical conductivity is discussed in detail. The most common defects in μFSLW, such as voids, tunnel defects, and hook formations, along with their impact on heat input and tool movement, are examined. Additionally, strategies to improve joint quality, including the addition of engineering interlayers (e.g. zinc foil) and nanoparticles (e.g. graphene), are explored as they mitigate brittle IMCs, improve grain structure, and enhance both mechanical and electrical properties. Important research gaps, regarding the effects of tool tilt angles and complex tool profiles on the mechanical and electrical joint properties, are highlighted as the potential benefits of assistive technologies, such as ultrasonic vibration, assistive heating and cooling, and assistive magnetic field. Future work is essential to enhance the μFSLW of Al-Cu, investigating complex tool geometries, and improving process parameters.

Item Type:	Article
Uncontrolled Keywords:	Aluminium and copper
Subjects:	T Technology > TN Mining engineering. Metallurgy > TN600-799 Metallurgy T Technology > TN Mining engineering. Metallurgy > TN799.5-948 Nonmetallic minerals
Divisions:	Faculty of Engineering and Technology (FET)
Depositing User:	Ms Rosnani Abd Wahab
Date Deposited:	30 Apr 2025 05:40
Last Modified:	30 Apr 2025 05:40
URII:	http://shdl.mmu.edu.my/id/eprint/13732

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