Development of All Laser Welded Honeycomb Structure for Civil Transports

摘要

An all-laser-welded stainless-steel honeycomb structure was developed for civil transports. This honeycomb panel consists of corrugated sheet, face sheets and flanges. These flanges are important for manufacturing curved surface panels and enable joining panels to panels in the field. A laser-welding process was applied to manufacture this honeycomb panel. Laser welding features highly controllable depth penetration, which eliminates welding bead on the honeycomb panel external surface. Therefore, this panel has high corrosion resistance and a sturdy appearance. This honeycomb panel was employed in a prototype of a high-speed freight ship as a national project. It is also being applied in a prototype commuter train and is being examined by the East Japan Railway Company.