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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