Magnesium alloy products are mainly obtained through casting, including high-pressure casting (hot chamber die casting method, cold chamber die casting method), gravity casting (sand casting, investment casting and metal casting process), as well as other emerging casting processes (low-pressure casting, extrusion casting, semi-solid casting, etc.). Among them, die casting is the most mature and widely used technology, more than 90% of the magnesium alloy products are die casting forming