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Proceedings Paper

Characteristics of CW/pulse discharge for high power transverse flow CO2 laser and its application
Author(s): Hao Peng; Xiahui Tang; Fang Xia; Juan Liu; Youqing Wang
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Paper Abstract

Aiming at the 3kW transverse flow CO2 laser, a hybrid power system and its compatibility with pin-to-flat discharge structure has been studied in the paper, CW/pulse output laser has been obtained. The DC high voltage output consists of switching power supply and main transformer, and three-phase SCR power supply is replaced by switching power supply. The pulse parameters are frequency from 0Hz to 1kHz, duty ratio from 0% to 100%. The pulse waveform of discharge voltage and discharge current are measured. The results show that row resistances have been moved, pin resistances have been reduced to 10kΩ. When the pressure P is 8.45kPa, the highest efficiency of electric-photo conversion of laser is up to 14.8%.The laser output power can be modulated in the state of continuous and pulse at arrange of 3kW. Then particular laser cladding is performed on the airplane engine blade, the laser cladding crack produced in continuous state is solved, and the heat-affected zone of laser cladding is also narrowed.

Paper Details

Date Published: 4 January 2008
PDF: 6 pages
Proc. SPIE 6825, Lasers in Material Processing and Manufacturing III, 68251I (4 January 2008); doi: 10.1117/12.757222
Show Author Affiliations
Hao Peng, Huazhong Univ. of Science and Technology (China)
Xiahui Tang, Huazhong Univ. of Science and Technology (China)
Fang Xia, Huazhong Univ. of Science and Technology (China)
Juan Liu, Huazhong Univ. of Science and Technology (China)
Youqing Wang, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 6825:
Lasers in Material Processing and Manufacturing III
ShuShen Deng; Akira Matsunawa; Xiao Zhu, Editor(s)

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