论文信息 - Monitoring of process stability in underwater Nd:YAG laser beam welding with optical sensor

Monitoring of process stability in underwater Nd:YAG laser beam welding with optical sensor

Underwater laser beam welding was put forward to meet repairing of irradiated components and structures used in nuclear-power plant. Due to the interaction between laser beam and water, the laser-induced plasma or plume is rather complex than in atmosphere. This paper tries to monitor the stability of welding process by detecting the plume in underwater laser beam welding.

Fukuhisa Matsuda | Xudong Zhang | Eiji Ashida | Susumu Shouno

[1] W. M. Steen,et al. Multi-frequency fibre optic sensors for in-process laser welding quality monitoring , 1993 .

[2] T. Kojima,et al. DEVELOPMENT OF UNDERWATER WELDING WITH HIGH POWER YAG LASER , 1998 .

[3] Helmut Huegel,et al. Laser beam welding: recent developments on process conduction and quality assurance , 1999, Other Conferences.

[4] Yong Wang,et al. Sensing and control system of process quality in CO2 laser deep-penetration welding , 1998, Other Conferences.

[5] D. Farson,et al. Relationship of optical and acoustic emissions to laser weld penetration , 1998 .

[6] Masao Watanabe,et al. Features on Various Monitoring Methods for Laser Welding and Their Application (1). Influence of Shield Gas Plasma on Monitoring Signals in Laser Welding. , 1998 .

[7] Y. Ogawa. Detection of wet condition for underwater local dry welding , 1998 .