| 摘要 |
PURPOSE:To obtain an isotropic forming body with good yield by fitting a porous metal die on the outer face of the rubber container having a hollow recessed part at the center part, by deaerating the inner part with pressure reduction by filling the forming powder and by performing a hydrostatic pres sure by removing the metal die for shape keeping. CONSTITUTION:A forming powder 9 is closely filled by setting a porous metal die 7 and the die 8 for shape keeping to the rubber container 2 having a hollow recessed part. The gaseous component in the forming powder is deaerated by reducing pressure in the rubber case via a vacuum port 10 after sealing the junction part by covering a rubber cover 3 on the container 2. The metal die 8 for shape keeping is then removed from a recessed part 1 and pressed with hydrostatic pressure by transferring it to a press device. In this way, the forming body in a port shape without any crack nor breakdown is obtd. with good yield. |
