Acquisition and processing of coaxial image of molten pool and keyhole in Nd:YAG laser welding with high power

China Welding (English Edition)

Volumn 13, Issue 1, 2004, Pages 51-55

  Qin, Guoliang ^a   Qi, Xiubin ^b   Yang, Yongbo ^b   Wang, Xuyou ^b   Lin, Shangyang ^b  

^a HARBIN INSTITUTE OF TECHNOLOGY   (China)

^b HARBIN WELDING INSTITUTE   (China)

Author keywords

Coaxial visual image; Image processing; Keyhole; Laser welding; Molten pool

Indexed keywords

IMAGE PROCESSING; IMAGE SEGMENTATION; SIGNAL PROCESSING;

COAXIAL VISUAL IMAGE; IMAGING SIGNAL; KEYHOLE; MOLTEN POOL;

LASER BEAM WELDING;

EID: 4544241398     PISSN: 10045341     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (5)

1. Miyamoto I. In-process monitoring in laser welding of automotive parts. SPIE, 1993, 2306: 160-167
2. Kratzsch C, Abels P, Kaierle S, et al. Coaxial process control during laser beam welding of tailored blanks. Proc. AHP-LA'99, 1999, 3888: 472-482
3. Beersiek J. On-line monitoring of keyhole instabilities during laser beam welding. Proc. ICALEO'99, 1999, D: 49-58
4. Luo Hong. The principles of defect diagnosis and the technologies concerned in laser welding of thin sheets. Ph. D. Thesis. Wuhan: Huazhong University of Science and Technology, 1996. (in Chinese)
5. Zhang Yujin. Image engineering (I)-Image processing and image analysis. Beijing: Tsinghua University Press, 2000.(in Chinese)