论文部分内容阅读
根据理论数据和经验公式对某不锈钢筒形件进行了连续拉深级进模设计,并对带料的连续拉深成形过程进行了数值模拟,预测了成形过程中出现的起皱和破裂缺陷。采用正交试验分析了压边力、摩擦系数和凹模圆角半径等参数对成形质量的影响,得到了拉深结束后制件的最大变薄率。通过对实验结果分析,得到了使制件减薄最小和消除筒壁起皱的成形参数。通过优化分析,消除了成形过程中出现的缺陷,得到了合理的成形参数。这能为实际生产提供指导。
According to the theoretical data and empirical formula, a continuous drawing progressive die design of a stainless steel cylinder was carried out. The continuous drawing process of the strip was numerically simulated and the wrinkling and rupture defects in the forming process were predicted. The orthogonal test was used to analyze the influence of blank holder force, friction coefficient and die fillet radius on the forming quality, and the maximum thinning rate of finished part was obtained. Through the analysis of the experimental results, the forming parameters that minimize the part thinning and eliminate the wrinkling of the cylinder wall are obtained. Through the optimization analysis, the defects in the forming process are eliminated, and the reasonable forming parameters are obtained. This can provide guidance for actual production.