%0 Generic %A Arregi, B. %A Granados, S. %A Hascoet, J. Y. %A Hamilton, K. %A Alonso, M. %A Ares, E. %T Automatic welding systems for large ship hulls %J AIP Conference Proceedings %D 2012 %@ 0094-243X %U https://hdl.handle.net/11556/2210 %X Welding processes represents about 40% of the total production time in shipbuilding. Although most of the indoor welding work is automated, outdoor operations still require the involvement of numerous operators. To automate hull welding operations is a priority in large shipyards. The objective of the present work is to develop a comprehensive welding system capable of working with several welding layers in an automated way. There are several difficulties for the seam tracking automation of the welding process. The proposed solution is the development of a welding machine capable of moving autonomously along the welding seam, controlling both the position of the torch and the welding parameters to adjust the thickness of the weld bead to the actual gap between the hull plates. %~