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US 2019/0169717 A1Published application
Printable Aluminum Alloys with Good Anodized Cosmetic Surfaces
AssigneeApple Inc.
InventorsHoishun Li, James A. Yurko, Herng-Jeng Jou, James A. Wright
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Abstract
The disclosure provides aluminum alloys with high tensile strength and appealing cosmetics and improved tensile yield strength. The aluminum alloys include 0.5 to 3.0 wt % Mg and 0.2 to 3.0 wt % Si. The alloys have a weight ratio of Mg to Si ranging from 2 to 4.
Claims20
An aluminum alloy comprising:
- 0.5 to 3.0 wt % Mg and 0.2 to 3.0 wt % Si, wherein the alloy has a weight ratio of Mg to Si ranging from 2.0 to 4.0.
An aluminum alloy comprising
- 0.5 to 1.6 wt % Mg,
- 0.2 to 0.5 wt % Si,
- 0.04 to 0.35 wt % Fe,
- less than 0.06 wt % of the one or more elements Cu, Cr, Mn, Zn, and V,
- 0.5 wt % of an additional metal chosen from Zr, Sc, and any combination thereof, and
- the remainder aluminum and incidental impurities;
- wherein the weight ratio of Mg to Si ranges from 3.0 to 4.0.
4 more elements
A method of making an aluminum alloy comprising:
- depositing a powdered aluminum alloy comprising 0.5 to 3.0 wt % Mg and 0.2 to 3.0 wt % Si, wherein the alloy has a weight ratio of Mg to Si ranging from 2.0 to 4.0 on an aluminum alloy substrate;
- heating the powdered aluminum alloy to form a melted alloy on the aluminum alloy substrate;
- and
- cooling the melted alloy on the aluminum alloy substrate to form the aluminum alloy.
1 more element
Dependencies are inferred from the claim text.