Establishing baseline FSW data for aluminium alloys up to 75 mm thick (TWI Technology Briefi ng)
Since its invention at TWI in 1991, friction stir welding (FSW) has been widely adopted for welding aluminium in sectors such as automotive, aerospace, rail and shipbuilding where high integrity, lightweight fatigue resistant fabrications are required. These applications are primarily in thin structures, varying from sheet and extrusions of just a few millimetres in thickness up to beams and plates of around 20 mm. To support the industrial deployment of the FSW process for aluminium, TWI undertook a number of research projects to evaluate the process parameters and tool designs resulting in the publication of two particularly influential TWI Industrial Members’ Reports that established the baseline process and tool designs that have remained in widespread industrial use to this day.
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