| 摘要 |
In the hydrostatic extrusion of a body through an opening, such as a die opening, the hydrostatic extrusion is begun by raising the pressure of the pressure fluid to a predetermined amount, and thereafter while continuing such pressure applying a tensile force to a portion of the body which is beyond the opening. The portion extending through the die may be preformed, or may be formed by the starting of hydrostatic extrusion. The end of the billet which engages the die is formed with double conicity. |
