Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Consolidation of powder prior to sintering
Reexamination Certificate
2005-07-19
2005-07-19
Jenkins, Daniel (Department: 1742)
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Consolidation of powder prior to sintering
C425S078000
Reexamination Certificate
active
06919041
ABSTRACT:
A method for compacting powder materials into articles comprises placing a powder material in a shaping cavity of a mold, the cavity being defined by active and passive shaping surfaces of one-piece or composite shaping members of the mold; mutually moving the shaping members of the mold along a pressing axis, with the pressing force transferred from the shaping members of the mold to the powder material through the active shaping surfaces. Surfaces of the powder article, parallel to the pressing axis, are formed by the passive shaping surfaces of the one-piece or composite shaping members of the mold. According to the invention, surfaces of the powder article, parallel to the pressing axis, are formed using parts of at least one passive shaping surface, located on the one-piece or composite shaping members split along the pressing axis. The shaping members of the mold are moved so that at least one continuous surface of the powder article, parallel to the pressing axis, is formed by the parts of at least one passive shaping surface split along the pressing axis, the parts belonging to different shaping members moving in opposite directions. A mold is also disclosed for implementing the method.
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Dvilis Edgar Sergeevich
Khasanov Oleg Leonidovich
Pokholkov Jury Petrovich
Sokolov Vitaly Mikhailovich
Jenkins Daniel
Tomsky Polytekhnichesky Universitet
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