Method and device for manufacturing a compact from metal powder
The method comprises filling a metal powder into a mold cavity that is formed by a drivable upper- (9) and lower die arrangement (10) and a matrix arrangement (11) of a powder press and pressing the die arrangements against each other to form a blank (1), filling a lower part of the matrix arrangeme...
Gespeichert in:
Hauptverfasser: | , , |
---|---|
Format: | Patent |
Sprache: | eng ; fre ; ger |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | The method comprises filling a metal powder into a mold cavity that is formed by a drivable upper- (9) and lower die arrangement (10) and a matrix arrangement (11) of a powder press and pressing the die arrangements against each other to form a blank (1), filling a lower part of the matrix arrangement with a first filling shoe (26) having the metal powder, and lowering an upper part of the matrix arrangement with a transversal male mold retracted in the mold cavity onto the lower part of the matrix arrangement after filling the lower part of the matrix arrangement. The method comprises filling a metal powder into a mold cavity that is formed by a drivable upper- (9) and lower die arrangement (10) and a matrix arrangement (11) of a powder press and then pressing the die arrangements against each other to form a blank (1), filling a lower part of the matrix arrangement with a first filling shoe (26) having the metal powder, and lowering an upper part of the matrix arrangement with a transversal male mold retracted in the mold cavity onto the lower part of the matrix arrangement after filling the lower part of the matrix arrangement and then filling the upper part of the matrix arrangement with a second filling shoe having the metal powder. The lower part of the matrix arrangement is present in a filling position. After the completion of the filling process, the pressing process is carried out and the blank is pressed. The transversal male mold is retracted from the mold cavity filled by the blank and from the blank. The upper and lower parts of the matrix arrangement are removed from the blank, which is kept by the die arrangements. After lowering the upper part of the matrix arrangement, a part of the lower die arrangement is raised to fill a given mass with the powder around the area, which lies under the transversal male mold in the cavity. After the pressing process and the retracting process, the blank is released by a corresponding return movement of the die arrangements. For carrying out a drawing process, the upper part of the matrix arrangement is removed from the lower part of the matrix arrangement away from the blank during the blank is kept by the upper die arrangement and then the lower part of the matrix arrangement is removed from the upper part of the matrix arrangement away from the blank during the blank is kept by the lower die arrangement. An independent claim is included for a device for producing a blank made of metal powder.
Ein Verfa |
---|