A METHOD OF FORMING DRAWPIECES FOR THE MANUFACTURE OF CONTAINERS

A method of forming metal drawpieces for the manufacture of packaging, where the preforms are molded in the first phase in a metal strip and the strip is held during the molding of the preforms, and the drawpieces are punched from the strip with the preforms, which form the drawpieces. The preforms...

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Bibliographische Detailangaben
Hauptverfasser:	LATOS, Tomasz, BRODAWKA, Lukasz, BUDZYN, Robert, FURMAN, Andrzej, REKAS, Artur, KOCIOLEK, Maciej, KUREK, Magdalena, BARAN, Wojciech, STYRNA, Tadeusz
Format:	Patent
Sprache:	eng ; fre ; ger
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 method of forming metal drawpieces for the manufacture of packaging, where the preforms are molded in the first phase in a metal strip and the strip is held during the molding of the preforms, and the drawpieces are punched from the strip with the preforms, which form the drawpieces. The preforms ( 2 ) molded in the first phase in a metal strip ( 1 ) have at least one surface ( 3 ) disposed in a plane ( P2 ) substantially parallel to the plane of the sheet metal ( P1 ), wherein the surface ( 3 ) is evenly stretched. A blank ( 4 ) which may also include a flange (i.e. a fragment of an unpressed sheet metal) is punched from such pressed preform ( 2 ) and then the drawpiece ( 5 ) is punched from which the blank ( 4 ), while the bottom ( 3 ) of the drawpiece ( 5 ) is molded from the top surface (3) of the preform (2) and the walls ( 8 ) of the drawpiece ( 5 ) are formed with oblique walls (6) of the preform (2) and a flange (7) of the blank (4).