10kW级直接输出半导体激光熔覆光源的研制与热效应分析

林星辰; 张亚维; 朱洪波; 刘云; 秦莉; 宁永强; 王立军

doi:10.3788/CO.20191204.0820

Volume 12 Issue 4

Aug. 2019

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Article Contents

Chinese Optics > 2019 > 12(4): 820-825.

LIN Xing-chen, ZHANG Ya-wei, ZHU hong-bo, LIU Yun, QIN Li, NING Yong-qiang, WANG Li-jun. 10 kW CW diode laser cladding source and thermal effect[J]. Chinese Optics, 2019, 12(4): 820-825. doi: 10.3788/CO.20191204.0820

Citation:

LIN Xing-chen, ZHANG Ya-wei, ZHU hong-bo, LIU Yun, QIN Li, NING Yong-qiang, WANG Li-jun. 10 kW CW diode laser cladding source and thermal effect[J]. Chinese Optics, 2019, 12(4): 820-825. doi: 10.3788/CO.20191204.0820

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10 kW CW diode laser cladding source and thermal effect

doi: 10.3788/CO.20191204.0820

1.
Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
2.
College of Science, Harbin Engineering University, Harbin 150001, China

Funds:

National Key Research and Development Program of China 2017YFB1104400

More Information

Corresponding author: ZHU hong-bo, E-mail:zhbciomp@163.com
Received Date: 25 Mar 2018
Rev Recd Date: 01 Apr 2018
Publish Date: 01 Aug 2019

Abstract

Abstract

Aiming at satisfying demands in applications of laser cladding and heat treatment, a source for diode lasers with a continuous output power of 10 kW was developed. By taking diode laser stack as unit device, two diode laser stacks of 915 nm and two of 976 nm were utilized and combined using polarization combination and wavelength combination technology. At an input current of 122 A, the maxmum output power and the total electrical-optical conversion efficiency of this laser cladding source were 10 200 W and 46%, respectively. The thermal effect of key optical elements in the laser source was analyzed and an efficient thermal dissipation structure was designed. The maximum temperature of the lens decreased from 442.2 K to 320 K and the corresponding maximum von Mises stress reduced from 75.4 MPa to 14 MPa. This greatly improved the reliability of the laser source.
- diode laser,
- laser cladding,
- laser combination

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References(18)

References

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