精冲模具磨损及对制件棱边质量的影响  

Fine-blanking die Wear and its effect on parts edge quality

作　　者：林立峰[1] 王贵成[1] 樊曙天[1] 张玉新[1] 方代正[1] 

机构地区：[1]江苏大学机械工程学院,镇江212013

出　　处：《机械设计与制造》2009年第10期243-245,共3页Machinery Design & Manufacture

摘　　要：基于精密冲裁的加工过程,选用DEFORM-2D有限元软件建立出其精密冲裁模型,利用Archard磨损理论对冲裁模具的磨损量等进行了预测,并采用简化刃口与磨损刃口两种形式对精密冲裁进行模拟,系统地揭示出模具特征点上的磨损深度值、制件棱边质量的变化,以及不同刃口磨损状态下板料等效应变、静水应力分布的变化规律。对进一步规范模具更换周期,进而优化模具结构具有重要意义。Based on machining process of the fine-blanking,a FE model of the fine-blanking was established by using DEFORM-2D software ,A rchard＇s wear formula was reformulated in an incremental form for predicting tool wear condition,and the fine-blanking Simulation by the worn cutting edge respectively,we systematically reveal the developing trend of the wear depth of correlative nodes and edge quality as well as the change law of m. The conclusion has important significance for further Standardizing the replacement of the mold and then Optimizing die structure.

关 键 词：精密冲裁 模具 棱边质量 磨损 

分 类 号：TH16[机械工程—机械制造及自动化] TG113.26[金属学及工艺—物理冶金]