Extruded metal alloy workpiece joining method e.g. for aluminium structural components

摘要

The method uses a high energy beam, e.g. a laser beam (12), directed on to an abutting joint between the extruded workpieces (10) which are made of an aluminium alloy containing magnesium and silicon. Each workpiece has a groove extending along the surface to be joined which is filled with a welding material, e.g. silicon, in the form of a wire during the extrusion of the workpiece