Abstract
Authors have been accumulating many experimental data of underwater welding process for offshore construction, maintenance and repair. Arc welding is the most basic technology in industry, however, physical analysis of arc welding process is still an outstanding issue. We analyze motion pictures of arc phenomena to understand actual arc welding process. Recent advancement of Information Technology makes it possible to provide this dynamic information of arc welding process as a multimedia database. We describe summary of the welding process information database in XML and the technique to reduce data size.
