Laserschweissen neuartiger Schiffskonstruktionen auf Basis des verdeckten T-Stosses Abschlussbericht

Abstract

Conventional arc welding techniques used in shipbuilding are characterized by high heat input resulting in a large extent of set-up, straightening and adjustment operations. This also complicates subsequent outfitting work. The need for lightweight structures leads to the development of new design solutions, better exploiting material properties while enhancing the operational behaviour. Laser welding techniques both reduce heat distortions and allow for new structural solutions. The project aims at the development and exploitation of laser welded sandwich panels in the shipbuilding industry. Emphasis was put on the following aspects: Installation of a prototype laser welding station and development of the welding process. Development of a quality assurance system and qualification of the panels. Investigations on operational properties of sandwich panels and development of design solutions. Assembly and subsequent manufacturing processes for sandwich panels in a shipyard environment. Laser welded sandwich panels have already been used in newbuilding ships. e.g. by Meyer Werft, and in other industries. Due to their improved properties and modulare premanufacturing techniques sandwich panels are competitive against conventional stiffened plates. (orig.)SIGLEAvailable from TIB Hannover: F99B1727 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung und Forschung (BMBF), Bonn (Germany)DEGerman