Keywords Die-cast magnesium;Rare earth;Microstructure;High temperature properties;Machinability;Drilling force;Torque;Drilling tools wear;Wear mechanism map;Safety zone;

• 压铸镁合金;稀土;显微组织;高温性能;加工性能;轴向力;扭矩;刀具磨损;磨损机理图;安全区;