Producing composite workpiece made of two workpieces, comprises joining two metal plates made of light metal alloy and steel, and reducing after joining weld bead between the work pieces in its height regarding adjacent workpiece surface

摘要

The method for producing composite workpiece (18) made of two workpieces (10, 12), comprises joining two metal plates made of a light metal alloy and a steel, which are joined together on an impact by cold metal transfer welding, and reducing after joining a weld bead (24) between the work pieces in its height regarding an adjacent workpiece surface (26). The weld bead is removed by a separating process such as milling or pushing, and is flattened by one of the weld beads through a transforming process such as rolling and pressing.