An automated welding operation planning system for block assembly in shipbuilding

The block assembly process is one of the most important manufacturing proce sses for shipbuilding. Since block is composed of several steel plates and steel sections with predetermined shapes according to ship design, the weld ing operation planning to construct a block is a critical activity for ship building, but this activity has traditionally been experience based. Thus, it is required to develop an automated welding operation planning system to assemble blocks. This paper describes the development of an automated weld ing operation planning system for block assembly in shipbuilding. Based on the information about parts, topological relationship between parts and ass embly sequences for block, the developed system performs the determination of welding postures, welding methods, welding equipment and welding materia ls. The developed system implemented successfully for real blocks construct ed in shipyard. (C) 1999 Elsevier Science B.V. All rights reserved.