US2015314361A1PendingUtilityA1

Aluminum sheet with enhanced formability and an aluminum container made from aluminum sheet

50
Assignee: ALCOA INCPriority: Apr 30, 2014Filed: Apr 30, 2015Published: Nov 5, 2015
Est. expiryApr 30, 2034(~7.8 yrs left)· nominal 20-yr term from priority
Inventors:Thomas N. RounsDavid J. McneishDarl G. BoyselGuy P. WilsonGreg MrozinskiJean F. CappsNeesha A. GhadialiSamuel CombsChristopher R. MillerRobert E. Dick
B65D 1/0207C22F 1/047C22C 21/08C22C 21/06C22C 21/00C22F 1/04B65D 1/0276B21D 51/02B65D 1/02B21D 51/2638B21D 51/24B21D 22/28
50
PatentIndex Score
0
Cited by
0
References
0
Claims

Abstract

An aluminum sheet comprises a 3XXX or a 5xxx alloy having a tensile yield strength as measured in the longitudinal direction of 27-33 ksi and an ultimate tensile strength; wherein the ultimate tensile strength minus the tensile yield strength is less than 3.30 ksi (UTS−TYS<3.30 ksi). An aluminum container has a dome, wherein the dome comprises a AA 3XXX or a 5xxx having a tensile yield strength as measured in the longitudinal direction of 27-33 ksi and an ultimate tensile strength; wherein the ultimate tensile strength minus the tensile yield strength is less than 3.30 ksi (UTS−TYS<3.30 ksi).

Claims

exact text as granted — not AI-modified
1 . A device comprising:
 an aluminum sheet comprising a 3XXX or a 5xxx alloy having a tensile yield strength as measured in the longitudinal direction of 27-33 ksi and an ultimate tensile strength; wherein the ultimate tensile strength minus the tensile yield strength is less than 3.30 ksi (UTS−TYS<3.30 ksi).   
     
     
         2 . The device of  claim 1  wherein the tensile yield strength as measured in the longitudinal direction of 28-32 ksi. 
     
     
         3 . The device of  claim 1  wherein the tensile yield strength as measured in the longitudinal direction of 28.53-31.14 ksi. 
     
     
         4 . The device of  claim 1  wherein the ultimate tensile strength minus the tensile yield strength is 2.90-3.30 ksi. 
     
     
         5 . The device of  claim 1  wherein the ultimate tensile strength minus the tensile yield strength is 2.99-3.30 ksi. 
     
     
         6 . The device of  claim 1  wherein the aluminum sheet comprises one of AA: 3x03, 3x04 or 3x05. 
     
     
         7 . The device of  claim 1  wherein the aluminum sheet comprises AA 3104. 
     
     
         8 . A device comprising:
 an aluminum container having a dome, wherein the dome comprises a AA 3XXX or a 5xxx having a tensile yield strength as measured in the longitudinal direction of 27-33 ksi and an ultimate tensile strength; wherein the ultimate tensile strength minus the tensile yield strength is less than 3.30 ksi (UTS−TYS<3.30 ksi).   
     
     
         9 . The device of  claim 8  wherein the tensile yield strength as measured in the longitudinal direction of 28-32 ksi. 
     
     
         10 . The device of  claim 8  wherein the tensile yield strength as measured in the longitudinal direction of 28.53-31.14 ksi. 
     
     
         11 . The device of  claim 8  wherein the ultimate tensile strength minus the tensile yield strength is 2.90-3.30 ksi. 
     
     
         12 . The device of  claim 8  wherein the ultimate tensile strength minus the tensile yield strength is 2.99-3.30 ksi. 
     
     
         13 . The device of  claim 8  wherein the aluminum sheet comprises one of AA: 3x03, 3x04 or 3x05. 
     
     
         14 . The device of  claim 8  wherein the aluminum sheet comprises AA 3104. 
     
     
         15 . The device of  claim 8  wherein the aluminum container is a bottle. 
     
     
         16 . A method comprising:
 forming a container from an aluminum sheet comprising a 3XXX or a 5xxx alloy having a tensile yield strength as measured in the longitudinal direction of 27-33 ksi and an ultimate tensile strength; wherein the ultimate tensile strength minus the tensile yield strength is less than 3.30 ksi (UTS−TYS<3.30 ksi); and   reducing a diameter of a portion of the container by at least 26%.   
     
     
         17 . The method of  claim 16  wherein reducing a diameter of the container by at least 26% comprises necking the container with necking dies. 
     
     
         18 . The method of  claim 17  reducing the diameter of the container by at least 26% comprises necking the container at least 14 times. 
     
     
         19 . The method of  claim 16  wherein the diameter of the container is reduced by at least 30%. 
     
     
         20 . The method of  claim 16  wherein the tensile yield strength as measured in the longitudinal direction of 28-32 ksi. 
     
     
         21 . The method of  claim 16  wherein the tensile yield strength as measured in the longitudinal direction of 28.53-31.14 ksi. 
     
     
         22 . The method of  claim 16  wherein the ultimate tensile strength; wherein the ultimate tensile strength minus the tensile yield strength is 2.90-3.30 ksi. 
     
     
         23 . The method of  claim 16  wherein the ultimate tensile strength; wherein the ultimate tensile strength minus the tensile yield strength is 2.99-3.30 ksi. 
     
     
         24 . The method of  claim 16  wherein the aluminum sheet comprises one of AA: 3x03, 3x04 or 3x05. 
     
     
         25 . The method of  claim 16  wherein the aluminum sheet comprises AA 3104. 
     
     
         26 . The method of  claim 16  wherein the container is a bottle. 
     
     
         27 . The method of  claim 16  further comprising expanding a section of the portion of the container having a reduced diameter. 
     
     
         28 . The method of  claim 27  wherein the section has a length and the length is at least 0.3 inches. 
     
     
         29 . The method of  claim 28  wherein the length is at least 0.4 inches.

Cited by (0)

No later patents cite this yet.

References (0)

No backward citations on record.