不同硬度301型不锈钢带材双轴柔性滚弯成形过程仿真及实验  

Experiment and simulation of two-axle bending of 301 stainless steel strip with different hardness values

作　　者：李佶[1] 黎向锋[1] 陈冠宇[1] 左敦稳[1] 孙业斌[1] 李敏[1] 朱长发[1] 

机构地区：[1]南京航空航天大学机电学院,江苏南京210016

出　　处：《塑性工程学报》2017年第2期28-32,共5页Journal of Plasticity Engineering

基　　金：国家自然科学基金资助项目(51575269);南京航空航天大学2015年度研究生创新基地(实验室)开放基金资助项目(kfjj20150510);南京航空航天大学2015年度机电学院研究生开放基金资助项目(ykfjj2015010);中央高校基本科研业务费专项资助;江苏省科技项目(BY2016003-12)

摘　　要：基于不同硬度301型不锈钢带材的拉伸试验以及文献中相关参数建立其本构模型,利用有限元分析软件ABAQUS对双轴柔性滚弯成形过程进行有限元模拟,获得了不同硬度带材成形情况以及滚弯过程中的成形力;根据仿真中的工艺参数开展了不同硬度和挤压量的双轴柔性滚弯成形试验,获得一系列成形试样。利用MATLAB拟合程序识别出仿真及试验中的带材成形曲率半径,结果说明随着带材硬度的增加,成形曲率半径增大,但成形力基本不变,因此适当选取硬度较低的带材有利于直筒开缝衬套的制备。Based on tensile test of strips with different hardness values and related parameters in the literature,the constitutive model of 301 stainless steel was established,the forming process of the two-axle bending was simulated by using the finite element analysis software ABAQUS,and the forming behaviors and forming force of the strips with different hardness values were obtained. According to the process parameters in the simulation,the experiments of the two-axle strip bending with different hardness values and extrusion amounts were conducted,and a series of samples were got. MATLAB fitting procedure was used to identify the forming radius of the strips formed by the test and simulation. The results show that,with the increase of the strip hardness,the formed radius of the strip increases,while the forming force changes little. Therefore,the proper choice of the relatively low hardness of the strip is advantageous to the preparation of the split sleeve.

关 键 词：301型不锈钢带材 开缝衬套 双轴柔性滚弯 带材硬度 有限元模拟 

分 类 号：TG302[金属学及工艺—金属压力加工]