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Optical Engineering

Welding of Al alloy plates using a novel high-average-power pulsed CO2 laser
Author(s): Haijun Gao; Zhaogu Cheng; Guoliang Xu
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Paper 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.

Paper Details

Date Published: 1 June 2005
PDF: 7 pages
Opt. Eng. 44(6) 064201 doi: 10.1117/1.1921187
Published in: Optical Engineering Volume 44, Issue 6
Show Author Affiliations
Haijun Gao, Shanghai Institute of Optics and Fine Mechanics (China)
Zhaogu Cheng, Shanghai Institute of Optics and Fine Mechanics (China)
Guoliang Xu, Shanghai Institute of Optics and Fine Mechanics (China)


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