Since there are aluminium alloys which are as strong or even stronger than steels, aluminium alloys are increasingly being recognised as an alternative, weight saving construction material in shipbuilding. Some of high strength Al-alloys have not been used in shipbuilding before, due to their poor weldability. Friction Stir Welding expands the scope of application of these materials by providing accurate welded components that require minimal fit-up work, and by allowing the use of high strength aluminium grades. The limiting factor of relative high down-force needed when friction stir welding can be overcome with a proper support in a form of a backing bar. The implementation in shipbuilding is demonstrated with ESAB's new LEGIO(TM) modular concept that is based on a series of standardised welding machines. The flexible production equipment and capacity allows customer built solutions. The welding operator does not need any special skills, since the parameters are repeatable and high quality is easily achieved.
FSW - possibilities in shipbuilding
Svetsaren, English Edition ; 58 , 1 ; 6-8
2003
3 Seiten, 5 Bilder, 1 Tabelle, 2 Quellen
Article (Journal)
English
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