Research on the welding process of aluminum alloy based on high power fiber laser

Jian Zhang; Wei Zhang; Xiaoming Pan; Shanshi Huang; Wenwen Liu

doi:10.1117/12.2271121

1 August 2017 Research on the welding process of aluminum alloy based on high power fiber laser

Jian Zhang, Wei Zhang, Xiaoming Pan, Shanshi Huang, Wenwen Liu

Proceedings Volume 10339, Pacific Rim Laser Damage 2017: Optical Materials for High-Power Lasers; 1033925 (2017) https://doi.org/10.1117/12.2271121
Event: Pacific Rim Laser Damage 2017: Optical Materials for High Power Lasers, 2017, Shanghai, China

Abstract

To research the formation and variation principle of the weld seam and molten pool for aluminum alloy high power fiber laser welding, the welding experiments for 5052 aluminum alloy were carried out. The influences of laser power, scanning velocity and protection gas on the welding process were systematically researched. The results show that with the increase of power and scanning velocity, the depth to width ratio first increases and then decreases. The ratio reaches the maximum value at 2.6 KW and 30 mm/s, respectively. When the power located at 2.6 KW to 2.8 KW or the velocity located at 25 mm/s to 30 mm/s, stable deep penetration welding can be obtained. The weld seam shows relative flat appearance and the molten pool presents typical “T shape” topography. Moreover, the protection gas also influences the appearance of the weld seam. Using the independently designed fixture, the quality of the weld seam can be well improved.

Citation Download Citation

Jian Zhang, Wei Zhang, Xiaoming Pan, Shanshi Huang, and Wenwen Liu "Research on the welding process of aluminum alloy based on high power fiber laser ", Proc. SPIE 10339, Pacific Rim Laser Damage 2017: Optical Materials for High-Power Lasers, 1033925 (1 August 2017); https://doi.org/10.1117/12.2271121

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