US2005161128A1PendingUtilityA1
Aluminum alloy
Priority: Mar 19, 2002Filed: Mar 22, 2005Published: Jul 28, 2005
Est. expiryMar 19, 2022(expired)· nominal 20-yr term from priority
Inventors:Rathindra Dasgupta
C22C 1/12B22D 21/007B22D 17/007C22C 21/02
41
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Claims
Abstract
All aluminum alloy is disclosed that includes 6.5 to 8.5 percent silicon, 0.6 to 1.0 percent iron, 0.3 to 0.5 percent manganese, 0.35 to 0.65 percent magnesium, 0.01 to 1.0 percent zinc, 0.11 to 0.2 percent titanium, 2.0 to 2.5 percent copper, and aluminum as the remainder with further one or more other elements that are 0.001 to 0.15 percent of the weight of the aluminum alloy. An aluminum alloy of the above composition is high in strength and suitable for use with SSM methods of casting, such as Rheocasting and Thixocasting.
Claims
exact text as granted — not AI-modified1 . An aluminum alloy, consisting essentially of the following constituents by percentage of weight:
6.5 to 8.5
percent silicon;
0.6 to 1.0
percent iron;
0.3 to 0.5
percent manganese;
0.35 to 0.65
percent magnesium;
0.01 to 1.0
percent zinc;
0.11 to 0.2
percent titanium;
2.0 to 2.5
percent copper;
0.001 to 0.15
percent one or more other elements; and
aluminum as the remainder.
2 . The aluminum alloy of claim 1 , wherein the aluminum alloy comprises 7.2 to 8 percent silicon.
3 . The aluminum alloy of claim 1 , wherein the aluminum alloy comprises to 0.6 to 0.8 percent iron.
4 . The aluminum alloy of claim 1 , wherein the aluminum alloy comprises 0.45 to 0.6 percent magnesium.
5 . The aluminum alloy of claim 1 , wherein the one or more other elements is lead.
6 . The aluminum alloy of claim 1 , wherein the one or more other elements is chromium.
7 . The aluminum alloy of claim 1 , wherein the one or more other elements are lead and chromium.
8 . A die cast product, comprising by percentage of weight:
6.5 to 8.5
percent silicon;
0.6 to 1.0
percent iron;
0.3 to 0.5
percent manganese;
0.35 to 0.65
percent magnesium;
0.01 to 1.0
percent zinc;
0.11 to 0.2
percent titanium;
2.0 to 2.5
percent copper;
0.001 to 0.15
percent one or more other elements; and
aluminum as the remainder.
9 . The die cast product, of claim 8 , wherein the die cast product comprises 7.2 to 8 percent silicon.
10 . The die cast product of claim 8 , wherein the die cast product comprises 0.6 to 0.8 percent iron.
11 . The die cast product of claim 8 , wherein the die cast product comprises 0.45 to 0.6 percent magnesium.
12 . The die cast product of claim 8 , wherein the one or more other elements is lead.
13 . The die cast product of claim 8 , wherein the one or more other elements is chromium.
14 . The die cast product of claim 8 , wherein the one or more other elements are lead and chromium.
15 . A method of making a die cast product by an SSM method of casting, comprising:
forming a semi-solid aluminum alloy, wherein the semi-solid aluminum alloy comprises by percentage of weight: 6.5 to 8.5 percent silicon; 0.6 to 1.0 percent iron; 0.3 to 0.5 percent manganese; 0.35 to 0.65 percent magnesium; 0.01 to 1.0 percent zinc; 0.11 to 0.2 percent titanium; 2.0 to 2.5 percent copper; 0.001 to 0.15 percent one or more other elements; and aluminum as the remainder. placing the aluminum alloy in a die cavity.
16 . The method of making the die cast product of claim 15 , wherein the one or more other element is lead.
17 . The method of making the die cast product of claim 15 , wherein the one or more other element is chromium.
18 . The method of making the die cast product of claim 17 , wherein the one or more other elements are lead and chromium.
19 . The method of making the die cast product of claim 15 , wherein the SSM method of casting is Rheocasting.
20 . The method of making the die cast product of claim 15 , wherein the SSM method of casting is Thixocasting.Join the waitlist — get patent alerts
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