循环超细化热处理提高精冲模具寿命的研究  

Life improvement of precision punching die with cyclic super-fine heat treatment

作　　者：左传付[1] 李聚群[1] 杨晓红[1] 汤峰[2] 

机构地区：[1]鹤壁职业技术学院机电工程学院,河南鹤壁458030 [2]中原工学院材料与化学工程系,河南郑州450007

出　　处：《金属热处理》2008年第4期47-49,共3页Heat Treatment of Metals

摘　　要：对碳素工具钢T8A采用循环热处理晶粒超细化后对冲裁模具寿命的影响进行了试验研究。介绍了该钢循环热处理规范和所得组织。结果表明,T8A钢经3～5次循环处理后,可获得均匀的超细晶粒,其力学性能明显提高。采用该规范处理的冲裁模具寿命可提高2倍以上。The influence of cyclic heat treatment on the life of punching and sheafing dies made of carbon tool steel T8A was studied. The heat treatment process and microstructure of the steel was also introduced. The results show that after 3 - 5 cycles treatment, the ultra-fine grain is uniform, and the mechanical properties increase significantly. The life of the dies increases by 2 times with the new heat treatment process.

关 键 词：T8A钢 循环热处理 超细化晶粒 精冲模具 寿命 

分 类 号：TG156[金属学及工艺—热处理] TG162.4[金属学及工艺—金属学]