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Hanggara, Fuad Dwi 
ORCID: https://orcid.org/0000-0002-9018-0249, Putra, Rama Dani Eka, Prayogo, Dhanang Suryo ORCID: https://orcid.org/0009-0007-0163-3888, Wilujeng, Handi Nugroho and Zulenia, Tessa Fitri
(2025)
Effect of nitrogen gas-assisted cooling on TIG weld distortion and mechanical properties of AA5083 aluminum alloy.
Jurnal Polimesin, 23 (6).
pp. 904-911.
ISSN 2549-1199
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7910-26149-1-PB (1).pdf - Published Version Download (604kB) | Preview |
Abstract
This study investigates the effect of nitrogen gas-assisted static
cooling on weld distortion and mechanical properties of AA5083
aluminum alloy joined by Tungsten Inert Gas (TIG) welding.
Although various cooling techniques have been reported to control
heat input and distortion in aluminum welding, the combined
influence of static nitrogen cooling and welding current on both
distortion behavior and local mechanical properties of AA5083
remains insufficiently understood. Three welding current levels
(100 A, 110 A, and 120 A) were applied while maintaining
constant welding speed, arc voltage, and shielding gas flow.
Mechanical properties, including tensile strength and Vickers
hardness, were evaluated across the weld metal, Heat-Affected
Zone (HAZ), and base metal. Thermal-induced distortion was
analyzed using 3D profiling and validated through Analysis of
Variance (ANOVA) statistical tests. The results indicate that a
welding current of 100 A with static nitrogen cooling minimizes
distortion and achieves the highest tensile strength (197.41 MPa).
The highest yield strength was recorded at 120 A (160.31 MPa),
while the maximum hardness values were observed in the weld
metal at 110 A (135.83 VHN), HAZ at 120 A (117.63 VHN), and
base metal at 100 A (124.1 VHN). Statistical analysis confirms that
welding current significantly influences both distortion and
mechanical outcomes (p < 0.05), while the cooling method shows a
moderate effect. These findings demonstrate that nitrogen-assisted
static cooling offers a practical approach to improving weld quality
by balancing dimensional stability and mechanical performance in
precision aluminum welding applications.
| Item Type: | Journal Article |
|---|---|
| Keywords: | Distortortion, experimental, material, mechanical properties, welding. |
| Subjects: | 09 ENGINEERING > 0913 Mechanical Engineering > 091308 Solid Mechanics |
| Divisions: | Faculty of Technology > Department of Mechanical Engineering |
| Depositing User: | Fuad Dwi Hanggara |
| Date Deposited: | 10 Jul 2026 15:31 |
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