Optimization of Microchannel Aluminum Flat Tube Extrusion Die Structure Based on DEFORM-3D

采用刚塑性有限元软件DEFORM-3D对微通道扁管的挤压成形进行数值模拟，运用绘图软件SolidWorks建立了模具的三维仿真模型；基于有限元分析软件平台，对该型材的挤压过程进行了模拟仿真分析，获得了模具挤压微通道扁管时，焊合面上静水应力、金属速度的分布以及变化规律，并对模具结构进行了优化设计，保证了挤压型材的尺寸精度和模具的使用寿命。Numerical simulation of the extrusion forming of microchannel flat tubes was carried out using the rigid plastic finite element software DEFORM-3D, and a three-dimensional simulation model of the mold was established using the drawing software SolidWorks. Based on the finite element analysis software platform, the extrusion process of the profile was simulated and analyzed, and the distribution and variation law of static water stress metal velocity on the welding surface during the extrusion of microchannel flat tubes by the mold were obtained. The mold structure was optimized to ensure the dimensional accuracy of the extruded profile and the service life of the mold.