Back to results
US 2009/0211323 A1Published application
Method of Forming a Circular Sheet-Metal Blank
AssigneeWf-Maschinenbau Und Blechformtechnk GmbH & Co. KG
InventorUdo Friese
Life of this patent
Estimating the term…
Abstract
A method of forming a circular sheet-metal blank which rests on a tool rotating about an axis. The sheet-metal blank has a thickness and has a diameter which is small than a diameter of the tool.
Claims13
A method of forming a circular sheet-metal blank, the method steps comprising:
- providing a tool rotatable about an axis, the tool having a tool diameter;
- providing a circular sheet-metal blank, the sheet-metal blank resting on the tool and having an initial thickness and an initial diameter that is smaller than the tool diameter;
- providing a flow-forming roller;
- plunging the free-forming roller into material of the circular sheet-metal blank;
- and
- moving the free-forming roller radially outward such that an area of the circular sheet-metal blank is enlarged radially in all directions to form a rotationally symmetrical circular sheet-metal blank having a resulting thickness that is smaller than the initial thickness at least in sections of the sheet-metal blank and a resulting diameter that is larger than the initial diameter.
3 more elements
(canceled)
Dependencies are inferred from the claim text.