显微形貌的Q235钢普通与负间隙精密冲裁质量对比研究  

The quality contrast between common blanking and fine-blanking with negative clearance for Q235 steel on the metallographic

作　　者：李建华[1] 李峰[1] 

机构地区：[1]中原工学院机电学院,郑州450007

出　　处：《现代制造工程》2010年第5期58-62,共5页Modern Manufacturing Engineering

基　　金：河南省科技厅基础研究项目(0311051000)

摘　　要：负间隙工艺是精密冲裁工艺的一种,因为其独特的加工工艺,可以使精密冲裁应用于普通冲床,所以负间隙精密冲裁工艺应用非常广泛。将负间隙精密冲裁件与普通冲裁件的断面金相显微形貌进行对比和分析,进一步阐述不同工艺冲裁件的断面特点,通过金相显微形貌说明了不同冲裁件的受力特点和影响断面质量的相关因素。The fine-blanking with negative clearance process is one kind of fine-blanking process,because its unique,it can make the fine-blanking be used in common punching machine.Therefore,its application is widespread.Carried on the contrast and analysis of common blanking fracture face metallographic and the fine-blanking with negative clearance,further elaborated the different process blanking workpiece fracture face characteristics,showed the different blanking stress characteristics and the factors influence on the fracture quality on metallographic.

关 键 词：负间隙 显微形貌 精密冲裁 断面质量 

分 类 号：TH16[机械工程—机械制造及自动化]