筒形件正强旋旋压力分布规律的有限元分析

FEM analysis of spinning pressure for forward tube flow forming

筒形件强力旋压时旋压力 3个分量及其分布规律是确定设备功率及结构参数的重要依据 .采用三维弹塑性有限元法对筒形件强力旋压工艺进行了分析 ,得到了正旋时变形区接触面上旋压力 3个分量的分布规律 ,计算结果与叶山实测结果吻合较好 ,为合理选择工艺参数 ,提高产品的尺寸精度提供了理论依据 .

Spinning pressure and its distribution are important for determining the power of spinning equipment and structure parameter for tube flow forming. The tube spinning process has been analyzed by 3D elastic plastic FEM and the three sector′s distribution circumstance of spinning force in contact area was obtained. The calculating result is in agreement with M. Hayama′s experimental results, and it provides theoretical evidence for determining the rational technical parameters and improving the dimensional accuracy of products.