以SUS304不锈钢车灯反射镜为研究对象,对其进行了充液拉深,针对成形零件中的菱角变薄缺陷,通过数值模拟、理论分析,提出了一种对液压力的最小二乘法曲线拟合优化方法,得出曲线方程,并通过实验验证了该方程。结果表明,采用最优液压力拉深得到的零件既能达到较均匀的厚度分布,又能降低实验所需的液压设备功率,对生产实践具有指导作用。 Taking SUS304 stainless steel lamp reflector as the research object, the liquid-filled deep drawing was carried out. According to the numerical simulation and theoretical analysis, aiming at the thinning defect of water chestnut in the forming part, Combining optimization methods, the curve equation is obtained, and the equation is validated experimentally. The results show that the parts obtained by drawing the optimal hydraulic pressure can not only achieve a more uniform thickness distribution, but also reduce the hydraulic equipment power required for the experiment, which can guide the production practice.