Reducing material usage and plastic-deformation steps in the manufacture of aluminum containers
OwnerBrad Deuser, Scott Kellerman +3inventors
InventorsBrad Deuser, Scott Kellerman, Mark Schremmer, Willie Daies, Craig Buschkoetter
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Abstract
Provided is a process of making an aluminum bottle, the process including: 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 the sheet aluminum having a yield strength between 33.1 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.
Claims25
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;
- 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.
An apparatus, comprising:
- an aluminum bottle, comprising:
- a dome-shaped bottom portion;
- a cylindrical portion coupled to the bottom portion;
- a neck portion coupled to the cylindrical portion;
- and
- an opening in the neck portion, wherein:
- the aluminum bottle is made of a 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;
- a height of the neck portion accounts for more than 15% of a height of the aluminum bottle;
- the aluminum bottle has an aspect ratio of three or greater;
- and
- the cylindrical portion has a wall thickness of less than 0.00650 inches and greater than 0.00575 inches.
Dependencies are inferred from the claim text.