小直径开缝衬套双轴柔性滚弯成形的三维有限元分析
发布时间：2018-10-22 18:31
【摘要】：基于双轴柔性滚弯技术原理,建立了采用0Cr15Ni7Mo2Al材料制备小直径开缝衬套过程的三维有限元模型,以指导实际小直径开缝衬套的制备。利用该模型分析了衬套应力应变分布、刚性轴受力变形情况、衬套成形曲率半径与刚性轴直径的关系及衬套成形曲率半径与带材尺寸的关系,并用滚弯试验验证了该模型的准确性。结果说明:带材滚弯变形随着进给量的增加而更均匀;刚性轴受力随其直径的减小而减小,刚性轴变形程度随其直径的减小而增大;衬套成形曲率半径随着刚性轴直径的增大而增大;衬套成形曲率半径随着带材宽度和厚度的增大而增大。
[Abstract]:Based on the principle of biaxial flexible roll bending, a three-dimensional finite element model for the preparation of small diameter slit bushing with 0Cr15Ni7Mo2Al material was established to guide the preparation of practical small diameter slit bushing. By using this model, the stress and strain distribution of the bushing, the stress and deformation of the rigid shaft, the relationship between the forming curvature radius of the bushing and the diameter of the rigid shaft, and the relationship between the forming curvature radius of the bushing and the size of the strip are analyzed. The accuracy of the model is verified by rolling bending test. The results show that the rolling bending deformation of the strip is more uniform with the increase of the feed rate, the force of the rigid axis decreases with the decrease of its diameter, and the degree of deformation of the rigid axis increases with the decrease of its diameter. The forming curvature radius of the bushing increases with the increase of the diameter of the rigid shaft, and the radius of the forming curvature increases with the increase of the width and thickness of the strip.
【作者单位】： 南京航空航天大学;
【基金】：空装十一五项目 中央高校基本科研业务费专项资金资助项目(kfjj130118) 南京航空航天大学2013年度研究生创新基地(实验室)开放基金资助项目(kfjj130118)
【分类号】：TG306
[Abstract]:Based on the principle of biaxial flexible roll bending, a three-dimensional finite element model for the preparation of small diameter slit bushing with 0Cr15Ni7Mo2Al material was established to guide the preparation of practical small diameter slit bushing. By using this model, the stress and strain distribution of the bushing, the stress and deformation of the rigid shaft, the relationship between the forming curvature radius of the bushing and the diameter of the rigid shaft, and the relationship between the forming curvature radius of the bushing and the size of the strip are analyzed. The accuracy of the model is verified by rolling bending test. The results show that the rolling bending deformation of the strip is more uniform with the increase of the feed rate, the force of the rigid axis decreases with the decrease of its diameter, and the degree of deformation of the rigid axis increases with the decrease of its diameter. The forming curvature radius of the bushing increases with the increase of the diameter of the rigid shaft, and the radius of the forming curvature increases with the increase of the width and thickness of the strip.
【作者单位】： 南京航空航天大学;
【基金】：空装十一五项目 中央高校基本科研业务费专项资金资助项目(kfjj130118) 南京航空航天大学2013年度研究生创新基地(实验室)开放基金资助项目(kfjj130118)
【分类号】：TG306
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