Method and equipment for producing open or closed annular structural members consisting of light metals and light metal alloys with a two-dimensional or three-dimensional structure

摘要

The present invention is a method for producing an open or closed annular structural member made of light metal and light metal alloy, preferably made of magnesium or magnesium alloy, with a two-dimensional or three-dimensional structure, An extrusion molded product exiting from the mold of the molding machine (3) is formed into a spiral shape body (9) using one or a plurality of guide tools (5), and both ends of the spiral shape body (9) are overlapped. A method characterized in that it is separated from the extruder in the region and formed into a two-dimensional or three-dimensional structural member (10) in the correction device (7)