ALUMINUM ALLOY ARTICLE HAVING LOW ROPING AND METHODS OF MAKING THE SAME

1 . A method comprising:

providing an unrecrystallized aluminum product;

subjecting the unrecrystallized aluminum product to an intermediate annealing heat treatment at a predefined temperature of less than or equal to 495° C. for a length of time less than or equal to 25 minutes to generate a recrystallized aluminum product;

subjecting the recrystallized aluminum product to a cold rolling process to generate a cold rolled aluminum product; and

subjecting the cold rolled aluminum product to a solution heat treatment to generate a dual-recrystallized aluminum product.

2 . The method of claim 1 , wherein the predefined temperature is from 320° C. to 495° C.

3 . The method of claim 1 , wherein the predefined temperature is from 340° C. to 485° C. and the length of time is less than or equal to 10 minutes.

4 . The method of claim 1 , wherein the predefined temperature is from 350° C. to 475° C. and the length of time is less than 1 minute.

5 . The method of claim 1 , wherein the predefined temperature is from 370° C. to 470° C. and the length of time is from 2 seconds to 35 seconds.

6 . The method of claim 1 , wherein the cold rolling process achieves a cold reduction from 55% to 75%, from 25% to 90%, from 45% to 95%, or from 60% to 99%.

7 . (canceled)

8 . (canceled)

9 . (canceled)

10 . The method of claim 1 , wherein the dual-recrystallized aluminum product exhibits a surface arithmetical mean height (Sa) of at most 0.50 μm.

11 . The method of claim 1 , wherein the dual-recrystallized aluminum product exhibits an f10% bending value of at most 0.55 in a transverse direction.

12 . The method of claim 1 , wherein the dual-recrystallized aluminum product exhibits an f15% bending value of at most 0.70 in a transverse direction.

13 . The method of claim 1 , wherein the dual-recrystallized aluminum product exhibits a uniform elongation of at least 21%.

14 . The method of claim 1 , wherein a thickness of the dual-recrystallized aluminum product is from 1.00 mm to 3.5 mm.

15 . The method of claim 1 , wherein the dual-recrystallized aluminum product comprises an average precipitate size of from 0.05 μm to 0.5 μm.

16 . The method of claim 1 , wherein undissolved precipitates occupy an area fraction of from 0% to 1% of the dual-recrystallized aluminum product.

17 . The method of claim 1 , wherein microvoids occupy an area fraction of from 0% to 0.3% of the dual-recrystallized aluminum product.

18 . The method of claim 1 , wherein the dual-recrystallized aluminum product exhibits a conductivity of from 25 mΩ/m to 40 mΩ/m.

19 . The method of claim 1 , wherein the predefined temperature is at most 350° C.

20 . The method of claim 1 , wherein the length of time is at most five minutes or at most one minute.

21 . (canceled)

22 . The method of claim 1 , wherein the intermediate annealing heat treatment comprises passing the unrecrystallized aluminum product through a furnace at a speed of from 10 m/min to 200 m/min, heating the unrecrystallized aluminum product using a magnetic heating process, and/or heating the unrecrystallized aluminum product by passing through a gas-fired furnace.

23 . (canceled)

24 . (canceled)

25 . The method of claim 1 , wherein the unrecrystallized aluminum product comprises a 6xxx series aluminum alloy or a 7xxx series aluminum alloy.

26 . (canceled)

27 . A rolled aluminum alloy product comprising:

a 6xxx series aluminum alloy or a 7xxx series aluminum alloy, wherein an Sa of the 6xxx series aluminum alloy or the 7xxx series aluminum alloy is at most 0.50 μm;

wherein a thickness of the rolled aluminum alloy product is from 1.00 mm to 3.5 mm; and

wherein undissolved precipitates occupy an area fraction of from 0% to 1% of the rolled aluminum alloy product.

28 - 30 . (canceled)