Advanced Welding Research

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  • Friction Stir Welding

    Friction Stir Welding is a solid state joining process. It was invented by Wayne Thomas in 1991 at The Welding Institute (TWI) which is a British research and technology organization. It was first patented by TWI (Thomas, et al., 1991). Since the process is capable of joining materials without melting it opened up new possibilities in welding technology. It provided a means of achieving rapid and high quality welds in materials e.g. 2xxx and 7xxx series aluminium alloys traditionally considered unweldable by conventional fusion welding techniques. The invention of FSW has been considered as one of the most revolutionary steps in welding technology and accordingly drew the interest of researchers worldwide into the field. This widespread interest has led to considerable advancement in the technology and acceptance in various industries. The technique which was primarily developed for low melting point materials like aluminium alloys, magnesium alloys etc. is now even applied to steels, titanium and some superalloys.




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