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All Journal International Journal of Industrial Innovation and Mechanical Engineering
Eisa Latif Nur
Universitas Dian Nusantara
Astronomy Computer Science & IT Engineering

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The Effect of Vibration-Assisted Welding on the GMAW Welding Process on Porosity, Microstructure, and Hardness in 5083 Aluminium Eisa Latif Nur; Adri Fato
International Journal of Industrial Innovation and Mechanical Engineering Vol. 3 No. 3 (2026): August: International Journal of Industrial Innovation and Mechanical Engineeri
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/ijiime.v3i3.454

Abstract

Gas Metal Arc Welding (GMAW) is widely used to join AA5083 aluminum due to its high efficiency and good weld quality. However, porosity and microstructural heterogeneity remain significant challenges that reduce the mechanical performance of the welded joint. This study explores the effects of combining vibration-assisted welding with different shielding gas flow rates on porosity, microstructure, and hardness of AA5083 aluminum welded using the GMAW method. Welding was performed at vibration frequencies of 0, 40, and 60 Hz and argon shielding gas flow rates of 15 to 20 L/min, while other welding parameters were kept constant. The welded joints were evaluated using Liquid Penetrant Testing (LPT), optical microscopy, and Vickers hardness testing. The results indicate that increasing the vibration frequency reduces surface weld damage, refines the microstructure of the weld metal, and improves hardness distribution. A higher shielding gas flow rate also enhances protection of the weld pool, thereby minimizing porosity defects and creating a more uniform microstructure. Among the various welding conditions, the combination of a 60 Hz frequency and a shielding gas flow rate of 20 L/min provided the best overall weld quality, as evidenced by the lowest porosity, the finest weld metal microstructure, and increased hardness. This study indicates that vibration-assisted GMAW combined with an appropriate shielding gas flow rate is an efficient method for improving the metallurgical quality of AA5083 welded joints.
Co-Authors Adri Fato