一种合金材料、冲孔模及加工处理工艺

本发明公开了一种合金材料、冲孔模及加工处理工艺。合金材料的化学成分按重量百分比计为：碳0.36～0.42％，铬5.05～5.25％，锰0.40～0.50％，硅1.05～1.15％，钼1.35～1.50％，钒0.95～1.05％，铌0.06～0.12％，稀土钇0.006～0.012％，稀土铽0.06～0.12％，硫≤0.002％，磷≤0.015％，其余为铁及不可避免的杂质；合金材料中，稀土钇重量是铌重量的10％，稀土铽和铌的重量相等。冲孔模以所述合金材料为原料加工制成，加工处理工艺包括：将所述合金材料进行扩散退火和等温球化退火，然后加工成型制成目标结构的模具，所得模具经淬火、回火、时效处理去应力，得到冲孔模。本发明冲孔模耐热磨损，不易断裂，高热疲劳抗力，使用寿命长。 The invention discloses an alloy material, a punching die and a processing technology. The alloy material comprises the following chemical components in percentage by weight: 0.36 to 0.42 percent of carbon, 5.05 to 5.25 percent of chromium, 0.40 to 0.50 percent of manganese, 1.05 to 1.15 percent of silicon, 1.35 to 1.50 percent of molybdenum, 0.95 to 1.05 percent of vanadium, 0.06 to 0.12 percent of niobium, 0.006 to 0.012 percent of rare earth yttrium, 0.06 to 0.12 percent of rare earth terbium, less than or equal to 0.002 percent of sulfur, less than or equal to 0.015 percent of phosphorus and the balance of iron and inevitable impurities. In the alloy material, the weight of