振动铸造工艺参数优化

Processing Parameters Optimization of Vibration Casting

为了获得振动对金属液流动的影响规律并优化振动参数,耦合动网格技术和两相流模型,对振动工况下型腔内液流流动进行了模拟,并利用正交设计工况优化了振动参数。结果表明,振动工况明显有利于型腔内金属液流动,减少了充型时间与壁面剪切力。优化的振动工艺参数是频率为30Hz,幅值为0.3mm,振动方向与水平方向成45°。生产实践表明优化后的振动工艺参数有助于获得较好的充型效果。

In order to obtain the molten metal flow pattern during vibration casting and to optimize vibration parameters,dynamic mesh and two-phase flow model were coupled to simulate flow field in vibration cavity,and orthogonal design was conducted to optimize the vibration parameters.The results show that the vibration can improve obviously the flow conditions of liquid metal in cavity,and reduce the filling time and the wall shearing stress.The optimization parameters were presented as follows：vibration frequency of 30Hz,amplitude of 0.3mm and the vibration direction of 45°to the horizontal direction.The practical experiment verifies that the optimized parameters are helpful to obtain the better filling effects.