Multiple Reflections and Fresnel Absorption of Gaussian Laser Beam in an Actual 3D Keyhole during Deep-Penetration Laser Welding
Joint Authors
Zou, Yufeng
Cheng, Yuanyong
Jin, Xiangzhong
Zeng, Licheng
Zhang, Honggui
Source
International Journal of Optics
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-05-23
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
In deep penetration laser welding, a keyhole is formed in the material.
Based on an experimentally obtained bending keyhole from low- and medium-speed laser penetration welding of glass, the keyhole profiles in both the symmetric plane are determined by polynomial fitting.
Then, a 3D bending keyhole is reconstructed under the assumption of circular cross-section of the keyhole at each keyhole depth.
In this paper, the behavior of focused Gaussian laser beam in the keyhole is analyzed by tracing a ray of light using Gaussian optics theory, the Fresnel absorption and multiple reflections in the keyhole are systematically studied, and the laser intensities absorbed on the keyhole walls are calculated.
Finally, the formation mechanism of the keyhole is deduced.
American Psychological Association (APA)
Jin, Xiangzhong& Cheng, Yuanyong& Zeng, Licheng& Zou, Yufeng& Zhang, Honggui. 2012. Multiple Reflections and Fresnel Absorption of Gaussian Laser Beam in an Actual 3D Keyhole during Deep-Penetration Laser Welding. International Journal of Optics،Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-465933
Modern Language Association (MLA)
Jin, Xiangzhong…[et al.]. Multiple Reflections and Fresnel Absorption of Gaussian Laser Beam in an Actual 3D Keyhole during Deep-Penetration Laser Welding. International Journal of Optics No. 2012 (2012), pp.1-8.
https://search.emarefa.net/detail/BIM-465933
American Medical Association (AMA)
Jin, Xiangzhong& Cheng, Yuanyong& Zeng, Licheng& Zou, Yufeng& Zhang, Honggui. Multiple Reflections and Fresnel Absorption of Gaussian Laser Beam in an Actual 3D Keyhole during Deep-Penetration Laser Welding. International Journal of Optics. 2012. Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-465933
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-465933