Granted Patent B2

US 7,323,069 · App. 11/079,106 · Granted Jan 29, 2008

Abstract

Claims (17)

1. A cast product comprising:

an injectable form of an aluminum-copper (206) alloy injected into a mold at a gate velocity of about 10 inches per second to about 200 inches per second and a piston pressure of about 3000 pounds per square inch (psi) to about 14000 psi, wherein the cast product is solidified in the mold and ejected from the mold and wherein the cast product is T4 tempered following casting and wherein the cast product exhibits a yield strength of about 269 mega Pascals (Mpa), a tensile strength of about 421 Mpa, and an elongation percent of about 26.

2. The cast product according to claim 1 , wherein the aluminum-copper (206) alloy is injected in the mold at a gate velocity of 57 inches per second.

3. The cast product according to claim 1 , wherein the aluminum-copper (206) alloy is injected in the mold at a piston pressure of about 5512 psi.

4. The cast product according to claim 1 , wherein the injectable form of the aluminum-copper (206) alloy is a liquidus form.

5. The cast product according to claim 1 , wherein the injectable form of the aluminum-copper (206) alloy is a semi-solid form.

6. The cast product according to claim 1 , wherein the cast product is suspension component.

7. The cast product according to claim 6 , wherein the cast product includes at least one of a front steering knuckle, rear steering knuckle, front control arm, and rear control arm.

8. The cast product according to claim 1 , wherein the cast product is an automotive component.

9. The cast product according to claim 1 , wherein the cast product does not include an in-situ addition of a grain refiner.

10. A suspension component for a vehicle comprising:

an aluminum-copper (206) alloy injected into a mold in a semi-solid form at a gate velocity of about 10 inches per second to about 200 inches per second and a piston pressure of about 3000 pounds per square inch (psi) to about 14000 psi, wherein the suspension component is solidified in the mold and ejected from the mold and wherein the suspension component is T4 tempered following casting and wherein the suspension component exhibits a yield strength of about 269 mega Pascals (Mpa), a tensile strength of about 421 Mpa, and an elongation percent of about 26.

11. The suspension component according to claim 10 , wherein the aluminum-copper (206) alloy is injected in the mold at a gate velocity of 57 inches per second.

12. The suspension component according to claim 10 , wherein the aluminum-copper (206) alloy is injected in the mold at a piston pressure of about 5512 psi.

13. The suspension component according to claim 10 , wherein the suspension component includes at least one of a front steering knuckle, rear steering knuckle, front control arm, and rear control arm.

14. The suspension component according to claim 10 , wherein the suspension component is an automotive component.

15. The suspension component according to claim 10 , wherein the suspension component does not include an in-situ addition of a grain refiner.

Assignments (11)