Abstract：Lightweight aluminum alloy materials have become the most widely used non-ferrous metal materials in society. Taking 7xxx series aluminum alloy as the research object, which introduced the application direction of its profile produced by extrusion. The main factors affecting extrusion processing are analyzed, and taking electromagnetic stirring technology, as an example, to produce the large-scale casting. That listed the construction and ability of large-scale hydraulic extruder in the world, described the mold manufacturing process from CAD/CAE/CAM software design to CNC machining center, and compared the characteristics of forward extrusion, backward and other processes , the improvement measures of hydraulic system and isothermal processing are given. Last, the effect of extrusion times on the microstructure and properties of the materials was observed, which provides a reference for the extrusion processing.
2022, 
