基于ABAQUS的弹体旋压成形有限元数值模拟

为解决弹体旋压生产中参数难以选择的问题,基于弹塑性有限元基本理论,综合考虑旋压过程中金属在3个方向的流动以及摩擦等实际情况,建立了某导弹弹体某舱段旋压加工的三维弹塑性有限元力学数值模型,研究了几种关键工艺参数(包括旋轮圆角半径、进给速度、每道次减薄率等)对旋压成形结果的影响规律。

FEM Numerical Simulation on Tube Spinning of Guided Missile Body Based on ABAQUS

To solve the difficulty of the technical parameters selection in spinning process of guided missile body, a 3D elastic-plastic finite element model is constructed for the guided missile body spinning process based on the elastic-plastic finite element theory, the metal flow in three directions (tangential, radial and axial) and the friction effect are considered generally. With the model, the effect of various technical parameters (including the fillet radius of the roller, the feed velocity, the decrement of the thickness per procedure) on the forming results are studied.