Q235负间隙精密冲裁件断面微观组织变化研究  

Study on the fracture microstructure changes in fine-blanking with negative clearance of Q235

作　　者：李峰[1] 于永民[2] 岳云 

机构地区：[1]中原工学院信息商务学院,河南郑州450007 [2]中原工学院,河南郑州450007 [3]CATERPILLAR(郑州)有限公司,河南郑州450007

出　　处：《制造技术与机床》2015年第10期92-96,共5页Manufacturing Technology & Machine Tool

基　　金：河南省教育厅科学技术研究重点项目(14A460011);河南省科技厅基础研究项目(0311051000)

摘　　要：为了搞清负间隙精密冲裁和普通冲裁材料内部的运动状况,掌握两种冲裁的成形规律,通过负间隙精密冲裁和普通冲裁仿真和实验,针对不同冲裁时的断面进行研究,得到了负间隙精密冲裁和普通冲裁板料内部的成形规律,将负间隙精密冲裁时断面断裂成形裂纹细分为三级,证实了负间隙精密冲裁的挤压成形和普通冲裁的拉伸撕裂成形,并推得了负间隙精密冲裁件断面质量的影响因素及规律。In order to find out the movement condition of fine - blanking with negative clearance and common blan- king, to master two kinds of blanking forming law, through the simulation and experiment in fine - blanking with negative clearance and general blanking, according to the study of different cutting cross section, get the forming law of two kinds of cutting, subdivide the fine - blanking with negative clearance forming crack into three level, confirm the extrusion forming of fine - blanking with negative clearance and general blanking, derive the influence factors and rules of the quality of the section in fine - blanking with negative clearance.

关 键 词：负间隙 普通冲裁 仿真 实验 成形规律 

分 类 号：TH16[机械工程—机械制造及自动化]