低碳钢精冲成形工艺研究及凸模寿命预测  

Research on the Forming Process of Low Carbon Steel and the Prediction of the Die Life

作　　者：陈伟[1] 李炳[1] 

机构地区：[1]广东科技学院,广东东莞523000

出　　处：《模具制造》2016年第2期39-42,共4页Die & Mould Manufacture

摘　　要：利用有限元分析技术对常温下的低碳钢AISI-1008毛坯试样进行了精冲模拟,分析了凸模所受应力与各种工艺参数之间的关系,对优化精冲工艺提供了参考。结合凸模的应力应变场,采用Dowling损伤公式对凸模寿命进行预测,并采用修正后的疲劳强度指数,结果与实际寿命比较接近。In this paper,the finite element analysis technique is used to simulate the fineblanking of the low carbon steel AISI-1008. The relationship between the stress and the processparameters is analyzed. With the stress and strain field of the model,the Dowling formula andthe modified fatigue strength index is used to predict the service life of the die. The result is nearthe actual life.

关 键 词：有限元 精冲 应力应变 寿命预测 

分 类 号：TG385.2[金属学及工艺—金属压力加工]