Wall thickness variation during multi-pass spinning of large complicated shell;
大型复杂薄壁壳体多道次旋压过程中的壁厚变化
Because of the limitation of material forming limit and other factors, it is necessary to produce this kind of parts by multi-pass spinning technology.
由于受到材料成形极限等因素的限制，成形此类回转体零件往往需要采用多道次旋压工艺。
Research on the new quadratic rotated conicoid using normal equidistance method machine optical parts;
