The Problem Addressed
Welding aluminum alloys is a process that is highly susceptible to the formation of porosity (small voids) within the weld joint, which can significantly reduce its mechanical strength. Various post-weld treatment methods have been developed to address this, but a comprehensive summary is lacking. This research aims to systematically review how this technique can overcome these issues and enhance the mechanical properties of aluminum alloy welds.
What Was Done and Found
This research is a systematic literature review analyzing 144 relevant articles from the last 15 years. From the review, it was found that post-weld vibration treatment is effective in refining the grain structure. This process modifies the secondary dendritic structure (crystal structure formed during solidification) and creates new solid-phase nuclei. This results in a smaller and finer equiaxed grain structure (grain refinement), which significantly improves the weld’s mechanical properties. Grain size can be reduced from as large as 280 μm down to 118 μm, which directly correlates with an increase in tensile strength and hardness.
Impact and Significance
This literature review comprehensively concludes that vibration welding is a valid and effective technique for enhancing the mechanical properties of aluminum alloy weld joints. Its primary mechanism is grain refinement, which also has the potential to reduce defects like porosity. These findings provide a strong foundation for further research and practical application in the manufacturing sector, enabling the production of stronger and more reliable aluminum components.
Citation and Link to Original Source
For technical details and complete data, please read our official publication:
Saifudin, Triyono, Muhayat, N., Surojo, E., Shalahuddin, L., & Habibi, I. (2025). Vibration Welding and Mechanical Properties Improvement on the Aluminum Alloy Welds: A Systematic Literature Review. E3S Web of Conferences, 622, 01016. https://doi.org/10.1051/e3sconf/202562201016
