Proceedings of the 2nd International Conference on Electronic & Mechanical Engineering and Information Technology (EMEIT 2012)

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Elucidation of Seam Tracking Based on Keyhole Characteristic during High-Power Fiber Laser Welding

Authors
Yonghua Liu, Xiangdong Gao, Deyong You
Corresponding Author
Yonghua Liu
Available Online September 2012.
DOI
10.2991/emeit.2012.266How to use a DOI?
Keywords
High-power fiber laser welding, Keyhole, Seam tracking
Abstract

During deep penetration laser welding, a deep cavity called a keyhole is formed in a molten pool due to the intense recoil pressure of evaporation. The welding quality and stability are related to the configuration and characteristics of a keyhole. Some characteristic parameters of a keyhole can be extracted as an important method for seam tracking. The fiber laser butt-joint welding of Type 304 austenitic stainless steel plate with a high power 10 kW continuous wave fiber laser was studied and an infrared sensitive high-speed video camera was used to capture the dynamic images of the molten pools. In this paper the centroid point horizontal coordinate and column coordinate of a keyhole were defined as the keyhole characteristic parameters. By analyzing the change of the keyhole characteristic parameters during welding, it was found that these parameters could reflect the condition of seam tracking and the stability of laser welding as well as the quality of laser welding effectively, and then the status of welding could be monitored and distinguished by characteristic of a keyhole during high-power fiber laser welding.

Copyright
© 2012, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 2nd International Conference on Electronic & Mechanical Engineering and Information Technology (EMEIT 2012)
Series
Advances in Intelligent Systems Research
Publication Date
September 2012
ISBN
978-90-78677-60-4
ISSN
1951-6851
DOI
10.2991/emeit.2012.266How to use a DOI?
Copyright
© 2012, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

risenwbib
TY  - CONF
AU  - Yonghua Liu
AU  - Xiangdong Gao
AU  - Deyong You
PY  - 2012/09
DA  - 2012/09
TI  - Elucidation of Seam Tracking Based on Keyhole Characteristic during High-Power Fiber Laser Welding
BT  - Proceedings of the 2nd International Conference on Electronic & Mechanical Engineering and Information Technology (EMEIT 2012)
PB  - Atlantis Press
SP  - 1209
EP  - 1212
SN  - 1951-6851
UR  - https://doi.org/10.2991/emeit.2012.266
DO  - 10.2991/emeit.2012.266
ID  - Liu2012/09
ER  -