US 12,485,469 B2
Reducing material usage and plastic-deformation steps in the manufacture of aluminum containers
Brad Deuser, St. Louis, MO (US); Scott Kellerman, St. Louis, MO (US); Mark Schremmer, St. Louis, MO (US); Willie Daies, St. Louis, MO (US); and Craig Buschkoetter, St. Louis, MO (US)
Assigned to Anheuser-Busch, LLC, St. Louis, MO (US)
Filed by Anheuser-Busch, LLC, St. Louis, MO (US)
Filed on Sep. 10, 2020, as Appl. No. 17/017,440.
Claims priority of provisional application 62/898,542, filed on Sep. 10, 2019.
Prior Publication US 2021/0069770 A1, Mar. 11, 2021
Int. Cl. B21D 51/24 (2006.01); B21D 22/28 (2006.01)
CPC B21D 51/24 (2013.01) [B21D 22/28 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of making an aluminum bottle, the method comprising:
obtaining sheet aluminum, the sheet aluminum having a difference between ultimate tensile strength and yield strength between 3.31 thousand pounds per square inch (ksi) and 8.0 ksi and having a yield strength between 33.6 ksi and 42 ksi;
cutting a blank from the sheet aluminum;
plastically deforming the blank into a cup with three or fewer drawing steps; and
necking the cup to form an aluminum bottle with a neck.