Effect of weld geometry on fatigue performance of 6061-T6 aluminum GMAW: part 2. Lap joint

To investigate the effect of weld geometry on the fatigue performance of aluminum lap joint arc welding, GMAW experiments and fatigue tests were conducted. The results show that the combination of a smaller toe angle and full penetration with a proper gap size results in the best fatigue performance...

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Bibliographic Details
Published in:Journal of mechanical science and technology 2022-10, Vol.36 (10), p.5209-5214
Main Authors: Han, Sang-Woo, Lee, Geonho, Kim, Hansol, Kim, Min-Soo, Jo, Young-Rae, Cho, Jungho
Format: Article
Language:English
Subjects:
Control
Dynamical Systems
Engineering
Industrial and Production Engineering
Mechanical Engineering
Original Article
Vibration
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Summary:To investigate the effect of weld geometry on the fatigue performance of aluminum lap joint arc welding, GMAW experiments and fatigue tests were conducted. The results show that the combination of a smaller toe angle and full penetration with a proper gap size results in the best fatigue performance. A proper gap size can disperse the stress concentration, and the dispersion increases fatigue performance. Because of the reduction in the welded area, partial penetration has a lower fatigue performance than the full-penetration case. In the lap joint, a large toe angle causes a smaller weld reinforcement owing to geometric reasons, and therefore exhibits a lower fatigue performance.
ISSN:1738-494X
1976-3824
DOI:10.1007/s12206-022-0933-9