Welding of Al alloy plates using a novel high-average-power pulsed CO2 laser

Haijun Gao; Zhaogu Cheng; Guoliang Xu

doi:10.1117/1.1921187

1 June 2005 Welding of Al alloy plates using a novel high-average-power pulsed CO₂ laser

Haijun Gao, Zhaogu Cheng, Guoliang Xu

Author Affiliations +

Optical Engineering, Vol. 44, Issue 6, 064201 (June 2005). https://doi.org/10.1117/1.1921187

Abstract

A novel high-average-power pulsed CO₂ laser with a unique electrode structure is presented. The operation of a 5-kW transverse-flow CO₂ laser with the preionized pulse-train switched technique results in pulsation of the laser power, and the average laser power is about 5 kW. The characteristic of this technique is switching the preionized pulses into pulse trains so as to use the small preionized power (hundreds of watts) to control the large main-discharge power (tens of kilowatts). By this means, the cost and the complexity of the power supply are greatly reduced. The welding of LF2, LF21, LD2, and LY12 aluminum alloy plates has been successfully achieved using this laser.

©(2005) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Haijun Gao, Zhaogu Cheng, and Guoliang Xu "Welding of Al alloy plates using a novel high-average-power pulsed CO₂ laser," Optical Engineering 44(6), 064201 (1 June 2005). https://doi.org/10.1117/1.1921187

Published: 1 June 2005

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KEYWORDS

Gas lasers

Pulsed laser operation

Aluminum

Carbon monoxide

Laser welding

Modulation

Carbon dioxide lasers

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