Comparative Analysis of Non-Uniformity of Mechanical Properties of Welded Joints of Al – Mg – Si Alloys During Friction Stir Welding and Laser Welding
- Autores: Ivanov S.Y.1, Panchenko O.V.2, Mikhailov V.G.3
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Afiliações:
- Peter the Great St. Petersburg Polytechnic University (SPPU)
- Science and Technology Center “Novel Manufacturing Technologies”, SPPU
- Brandenburg University of Technology
- Edição: Volume 60, Nº 5-6 (2018)
- Páginas: 393-398
- Seção: Welded Joints
- URL: https://journal-vniispk.ru/0026-0673/article/view/236379
- DOI: https://doi.org/10.1007/s11041-018-0289-z
- ID: 236379
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Resumo
The properties of the welded joints of 6082-T6 alloy produced by friction stir welding (FSW) and laser welding (LW) were studied. The maximum temperature and microhardness fields in the friction stir-welded joints were shown to be asymmetrical. The concentrated energy input during laser welding yields a narrow heat-affected zone (HAZ) with sharp changes in mechanical properties. The strength of the FSW joint constitutes 72% and that of the LWjoint—67% of the base metal strength. In case of LW, the minimum hardness of the joint corresponds to the metal of the welded joint, while in case of FSW, it corresponds to the heat-affected zone. At the same maximum heating temperature, the hardness of the heat-affected zone of the friction stir-welded joint is lower compared to laser welding due to substantially lower rates of heating and cooling.
Sobre autores
S. Ivanov
Peter the Great St. Petersburg Polytechnic University (SPPU)
Autor responsável pela correspondência
Email: sergei.yu.ivanov@gmail.com
Rússia, St. Petersburg
O. Panchenko
Science and Technology Center “Novel Manufacturing Technologies”, SPPU
Email: sergei.yu.ivanov@gmail.com
Rússia, St. Petersburg
V. Mikhailov
Brandenburg University of Technology
Email: sergei.yu.ivanov@gmail.com
Alemanha, Cottbus
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