Aluminum microstructure for highly shaped products and associated methods
Aluminum and aluminum alloy microstructures that are adapted for improved performance during shaping and forming production processes. Lower relative ratios of alpha fibers, particularly low-end alpha fibers, to beta fibers promotes improved formability of aluminum sheet or blanks without negatively impacting material strength. Beta fibers with higher relative ratios of S and Copper texture components improve formability and produce fewer and more uniform distortions during production. The resulting improvements in quality allow for cupping, drawing, wall ironing, shaping, and necking processes to be carried out faster and with reduced rates of spoilage.
1. A 3xxx series aluminum alloy having an aluminum microstructure comprising:
from about 0.1% to about 10% by volume of combined Goss and rotated Goss texture components;
from 15% to about 20% by volume of Brass texture components;
greater than or equal to about 10% by volume of combined S and Copper texture components;
a ratio of an intensity of low-end alpha fibers to an intensity of high-end alpha fibers from about 0.01 to about 0.40; and
a ratio of the intensity of low-end alpha fibers to an intensity of beta fibers from about 0.01 to about 0.15, with a remainder of the aluminum microstructure in random or minor orientations;
wherein the low-end alpha fibers have a Euler angle φ 1 of less than 15° and the high-end alpha fibers have a Euler angle φ 1 from 15 to 35°.
2. The 3xxx series aluminum alloy of claim 1 , comprising from about 0.1% to about 5% by volume of combined Goss and rotated Goss texture components.
3. The 3xxx series aluminum alloy of claim 1 , comprising greater than or equal to about 15% by volume of combined S and Copper texture components.
4. The 3xxx series aluminum alloy of claim 1 , wherein the ratio of the intensity of low-end alpha fibers to the intensity of high-end alpha fibers is from about 0.01 to about 0.30.
5. The 3xxx series aluminum alloy of claim 1 , wherein the ratio of the intensity of low-end alpha fibers to the intensity of beta fibers is from about 0.01 to about 0.10.
6. The 3xxx series aluminum alloy of claim 1 , comprising from about 0.1% to about 5% by volume of combined Goss and rotated Goss texture components and greater than or equal to about 15% by volume of combined S and Copper texture components.
7. The 3xxx series aluminum alloy of claim 1 , comprising:
from about 0.1% to about 5% by volume of combined Goss and rotated Goss texture components;
greater than or equal to about 15% by volume of combined S and Copper texture components,
wherein the ratio of the intensity of low-end alpha fibers to the intensity of high-end alpha fibers is from about 0.01 to about 0.30, and the ratio of the intensity of low-end alpha fibers to the intensity of beta fibers is from about 0.01 to about 0.10.
8. A 3xxx series aluminum alloy having an aluminum microstructure comprising from 15% to about 20% by volume of Brass texture components and a ratio of an intensity of low-end alpha fibers to an intensity of high-end alpha fibers of from about 0.01 to about 0.40 and a ratio of the intensity of low-end alpha fibers to an intensity of beta fibers of from about 0.01 to about 0.15; wherein the low-end alpha fibers have a Euler angle φ 1 of less than 15° and the high-end alpha fibers have a Euler angle φ 1 from 15 to 35°.
9. The 3xxx series aluminum alloy of claim 8 , further comprising from about 0.1% to about 10% by volume of combined Goss and rotated Goss texture components.
10. The 3xxx series aluminum alloy of claim 8 , further comprising greater than or equal to about 10% by volume of combined S and Copper texture components.
11. The 3xxx series aluminum alloy of claim 8 , wherein the ratio of the intensity of low-end alpha fibers to the intensity of high-end alpha fibers is from about 0.01 to about 0.30 and the ratio of the intensity of low-end alpha fibers to the intensity of beta fibers is from about 0.01 to about 0.10.
12. An aluminum product comprising a microstructure of from about 0.1% to about 10% by volume of combined Goss and rotated Goss texture components, from 15% to about 20% by volume of Brass texture components, greater than or equal to about 10% by volume of combined S and Copper texture components, a ratio of an intensity of low-end alpha fibers to an intensity of high-end alpha fibers of from about 0.01 to about 0.40, and a ratio of the intensity of low-end alpha fibers to an intensity of beta fibers of from about 0.01 to about 0.15, with a remainder of the microstructure comprising random or minor orientations;
wherein the low-end alpha fibers have a Euler angle φ 1 of less than 15° and the high-end alpha fibers have a Euler angle φ 1 from 15 to 35°.
13. The aluminum product of claim 12 , wherein the aluminum product is a can or a bottle.
14. The aluminum product of claim 12 , wherein the microstructure comprises from about 0.1% to about 5% by volume of combined Goss and rotated Goss texture components, and greater than or equal to about 15% by volume of combined S and Copper texture components.
15. The aluminum product of claim 14 , wherein the aluminum product is a can or a bottle.
16. The aluminum product of claim 15 , wherein the ratio of the intensity of low-end alpha fibers to the intensity of high-end alpha fibers is from about 0.01 to about 0.30, and the ratio of the intensity of low-end alpha fibers to the intensity of beta fibers is from about 0.01 to about 0.10.