Abstract
The activities of The Welding Institute (TWI) in Cambridge (UK) are aimed at manufacturing industry with particular attention to joining technologies and the study of surface treatments, fields of strategic research with potentially high added value. Since the first ‘cross-flow’ LASERS for processing fine materials to more recently developed welding processes, TWI has produced innovations which have found important industrial applications, in some cases creating entirely new market sectors. One of the best known technologies patented by TWI in recent years is ‘friction stir’ welding (FSW). This technology has particularly revolutionized the welding of aluminium and has had a great influence in industrial sectors such as aerospace and automobiles. This paper describes the most recent development in the FSW process, LASER and electron beam welding technologies, the experimental results obtained and various industrial applications.
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