冷作模具,包括冷冲模、冷镦模、冷挤模、拉伸、压弯、拔丝模、滚丝模等。在机械制造、电机电器、无线电仪表,以及军工和宇航等行业的零件制造中,冷作模具占有很重要的地位,使用极为广泛。由于冷作模具种类繁多,服役条件差别很大,因而需选用不同的模具材料,以满足其性能的要求。世界工业发达国家均以碳素工具钢、合金工具钢,高速钢为主体,辅以其他钢种,将常用冷作模具钢系列化。美国的(AISI, Cold work die, including cold die, cold heading die, cold extrusion die, stretching, bending, drawing die, rolling die and so on. In the manufacture of machinery, electrical appliances, radio instruments, and military and aerospace industries such as parts manufacturing, cold dies occupy a very important position, the use of a very wide range. As a wide range of cold die, service conditions vary greatly, which need to use different mold materials to meet the performance requirements. The world’s industrialized countries are carbon tool steel, alloy tool steel, high-speed steel as the mainstay, supplemented by other types of steel, will be commonly used cold die steel series. American (AISI,