论文部分内容阅读
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 the tensile test of 301 stainless steel strips with different hardness and the related parameters in the literature, the constitutive model was established. The finite element simulation software ABAQUS was used to simulate the forming process of biaxial flexible roll forming. The forming of strip with different hardness And the forming force during the rolling process. According to the simulation process parameters, the biaxial flexible roll forming test with different hardness and extrusion amount was carried out to obtain a series of formed samples. Using MATLAB fitting program to identify the radius of curvature of the strip forming simulation and test, the results show that with the increase of the strip hardness, the radius of the forming curvature increases, but the forming force is basically unchanged, so the strip with the lower hardness It is conducive to the preparation of straight slit bushing.