Method for producing a metal container
AssigneeArdagh Metal Beverage Europe GmbH
InventorWillem Leendert Pieter VAN DAM
Life of this patent
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Abstract
Method for producing a metallic container (1) from a sheet material (2), the container (1), which is produced at least by deep drawing and/or extrusion along an axial direction (3), having at a first end (4) a base region (5) which at least partially closes the first end (4) and, adjoining the base region (5), a wall region (8) which extends along the axial direction (3) to a second end (6) and is formed circumferentially in a circumferential direction (7).
Claims20
A method for producing a metallic container from a sheet metal material, the metallic container comprising, at a first end, a base region which at least partially closes the first end and, adjacent to the base region, a wall region which extends along an axial direction towards a second end and is formed circumferentially in a circumferential direction, the method comprising:
- partially forming the sheet metal material in a second area along the axial direction, wherein the second area at least partially comprises an annular first area;
- contacting the sheet metal material in the annular first area with a first punch;
- and
- deep drawing and/or stretch-glide drawing the sheet metal material to form the base region and the wall region along the axial direction;
- wherein a material thickness of the sheet metal material in the second area is reduced by the partial forming thus increasing at least one yield strength Rp0,2 of the sheet metal material.
A sheet metal material comprising a width forming a planar surface and a length and a material thickness;
- wherein the planar surface comprises a plurality of annular or annular-segment-shaped second areas having a second area material thickness reduced with respect to the planar surface.
An apparatus for producing a metallic container from a sheet metal material, the apparatus comprising:
- a first punch configured to form the sheet metal material at least by deep drawing and/or stretch-glide drawing in a first area,
- a holder configured to position the sheet metal material relative to the first punch, and
- a device configured to form and/or reduce a material thickness of the sheet metal material in a second area.
Dependencies are inferred from the claim text.