铝合金锥体喷管剪切旋压参数模拟与工艺试验  

Numerical simulation on the shear spinning of aluminium alloy conical nozzle

作　　者：韩冬[1,2] 杨合[1] 詹梅[1] 张立武 牟少正 杨延涛 

机构地区：[1]西北工业大学材料学院,西安710072 [2]西安航天动力机械厂,西安710025

出　　处：《塑性工程学报》2011年第1期32-35,47,共5页Journal of Plasticity Engineering

基　　金：国家"863计划"资助项目(2008AA04Z122)

摘　　要：建立了锥体旋压有限元力学模型,确定了剪切旋压的边界条件。模拟结果揭示了剪切旋压的变形机理,得出三向压应力状态Pr>Pz>Pt。通过分析剪切旋压过程中等效应力、应变和壁厚的分布情况,确定了相对合理的工艺参数。并进行了实际旋压工艺过程试验,试验结果与有限元模拟结果接近。The finite element mechanical model of conical nozzle spinning was set up with the boundary conditions being established. The results show the deformation mechanism of shear spinning and that the order of the three-dimensional stress state is Pr〉Pz〉Pt. The rational technologic parameters have been obtained through analyzing the distribution of equivalent stress, equivalent strain and wall thickness. The simulation results are verified by experimental test.

关 键 词：锥体喷管 旋压 数值模拟 

分 类 号：V261.28[航空宇航科学与技术—航空宇航制造工程]