模面曲率对综合补偿系数的影响  

The impact of Mold Surface Curvature and Comprehensive Compensation Coefficient

作　　者：陈振教[1] 朱寅[1] 周驰[1] 阮锋[1] 廖娟[1] 

机构地区：[1]华南理工大学机械与汽车工程学院,广东广州510641

出　　处：《电加工与模具》2009年第6期61-63,共3页Electromachining & Mould

基　　金：国家自然科学基金资助项目(50805050);广东高校优秀青年创新人才培育项目

摘　　要：回弹是板料冲压成形中普遍存在的现象,对成形零件的尺寸精度有很大的影响。以半圆柱形模具为研究对象并建立回弹计算理论模型,利用有限元分析软件ABAQUS对该模型进行成形和回弹模拟。通过小幅改变模具曲率,分析不同曲率和回弹量之间的关系。并在此基础上提出综合补偿系数,用于指导模具设计。Springback is a widespread phenomenon in sheet metal forming. It has a great impact on the shape accuracy of the forming parts. This paper is focused on semi-cylindrical forming. By using the commercial finite element analysis （FEA） software ABAQUS, a model was built to simulate the forming and springback processes of semi-cylindrical forming. The effect of variation of curvature on the springback was studied by slightly changing the curvature of the cylinder. Based on this investigation, a compensation coefficient was proposed to guide the die designing.

关 键 词：模面曲率 回弹 有限元分析 综合补偿系数 

分 类 号：TG386[金属学及工艺—金属压力加工]