COMPOUND DIE FOR FINISH BLANKING OF WORKPIECES AND PUNCHING HOLES IN THEM

COMPOUND DIE FOR FINISH BLANKING OF WORKPIECES AND PUNCHING HOLES IN THEM

A tool for the simultaneous fine blanking of internal and external contours from a flat sheet, having a cutting punch and a cutting plate for the outer contour, a piercing punch for the inner contour and an ejector for the scrap from the hole and an ejector ring for the workpiece. … In accordance wi...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: SHANDOR BIRO,HU, ISHTVAN BRETENSHTAJN,HU
Format: Patent
Sprache:eng ; rus
Schlagworte:
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
PERFORMING OPERATIONS
PUNCHING METAL
TRANSPORTING
WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:A tool for the simultaneous fine blanking of internal and external contours from a flat sheet, having a cutting punch and a cutting plate for the outer contour, a piercing punch for the inner contour and an ejector for the scrap from the hole and an ejector ring for the workpiece. … In accordance with the further development according to the invention, the cutting punch (1) and the cutting plate (2) are each provided with a conical annular surface (4) to produce a hydrostatic pressure and radial flow in the cutting plane of the outer contour (3) and arranged opposite the piercing punch (13) there is an extrusion punch (7) which is provided with an extrusion cone which produces a hydrostatic pressure in the cutting plane of the inner contour (6) and extrudes the scrap (21) from the hole against the inner contour (6). ……