| 摘要 |
PURPOSE:To produce irregular shape articles easily from metal materials which are not in the form of powder by combining and disposing solid blank materials in a manner as to coincide approximately with the surface shape of dies, loading and sealing these in a capsule and subjecting the capsule to hot hydrostatic pressing. CONSTITUTION:Solid metal blank materials 1a-1g are suitably disposed approximately along the surface shape of a die 3, and are loaded into a capsule 2 for hot hydrostatic pressing. Air is vented from a deaerating pipe 4 provided to the upper cap 2a of the capsule 2, and the pipe 4 is sealed hermetically by forge-welding. Thence, the capsule 2 is charged into a hot hydrostatic pressing furnace, where it is treated for about one hour in, for example, an Ar gas atmosphere of about 1,150 deg.C and about 1,000 atmospheric pressure. Thereby, the materials 1a-1g are plastically deformed along the shape of the die 3 and the respective blank materials are mutually diffusibly bonded to develop firm bond, thus the molding and bonding is accomplished simultaneously. A material which does not cause plastic deformation in hot hydrostatic pressing is selected for the die material. |
