软包锂电池电芯封装铝塑膜外壳拉深工艺

通过拉深试验对铝塑膜材料特性进行分析，在DYNAFORM软件中定义铝塑膜材料属性并进行仿真试验。结合单因素试验和正交试验对影响铝塑膜拉深成形性能的各工艺参数进行显著性分析，采用响应曲面法、拉丁超立方试验设计和多目标粒子群优化算法相结合的方法对影响铝塑膜成形性能显著的参数（如压边力、模具圆角半径、摩擦因数和拉深速度）进行优化，优化后的铝塑膜拉深成形时，其壳体最薄处厚度为55 μm。试验验证了铝塑膜拉深成形工艺优化的结果可行。

Drawing Process of Aluminum Plastic Film Shell for Package of Flexible Packaging Lithium Battery Cores

The properties of aluminum plastic films were analyzed by tensile test. The material properties of aluminum plastics were defined in Dynaform software. The simulations of aluminum plastic film drawing processes were carried ort. The process parameters that affected the formability of aluminum plastic films were analysed by single factor experiment and orthogonal test. The parameters which affected the formability of aluminum plastic shell films such as blank holder forces, die fillet radii, friction coefficients，and stamping speeds were optimized by using RSM, LHS and MOPSO. The thickness of the films is as 55 μm after optimization. The experimental results show that the optimization results of the aluminum plastic film forming processes are feasible.