Method of and system for manufacturing powder moldings
AssigneesNissan Motor Co., Ltd., Yoshizuka Seiki Co., Ltd.
InventorsYuji Kishi, Takeshi Katagiri
Life of this patent
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Abstract
A method of manufacturing a powder molding having a undercut portion, etc. comprises filling a space of a die with a powder, pressing the powder in the space of the die by punches inserted therein through an opening of the die, and withdrawing a undercut portion shaping means from the space of the die for extracting the powder molding.
Claims14
A method of manufacturing a powder molding having a predetermined portion, the method relying upon at least one die formed with a space having an opening on both ends thereof, first and second punches and a means for shaping the predetermined portion of the powder molding, the method comprising the steps of:
- filling the space of the at least one die with a powder;
- pressing said powder in the space of the at least one die by the first and second punches inserted therein through the opening of the at least one die;
- and
- withdrawing the shaping means from the space of at least one die for extracting the powder molding.
An apparatus for manufacturing a powder molding having a predetermined portion, comprising:
- at least one die formed with a space to be filled with a powder, said space having an opening on both ends thereof:
- first and second punches arranged to be inserted into said space of said at least one die through said opening, said first and second punches pressing said powder in said space of said at least one die;
- and
- a means, movably arranged relative to said space of said at least one die, for shaping the predetermined portion of the powder molding, said shaping means having a shape corresponding to a shape of the predetermined portion of the powder molding.
Dependencies are inferred from the claim text.