Abstract:ABSTRACT:Friction-stir welding (FSW) is a solid-state joining process that uses a third body tool to join two faying surfaces. Frictional heat between the welding tool and the work pieces causes the latter to soften without reaching the melting point, allowing the tool to traverse along the weld line. It then mechanically intermixes the two pieces of metal at the place of joint; the softened metal can be joined using mechanical pressure (which is applied by the tool), much like joining clay or dough. In this p… Show more
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