Extrusion product made of aluminum/aluminum alloy matrix composite and a process of forming the extrusion product
a technology of aluminum alloy and composite, which is applied in the field of extrusion products made of aluminum/aluminum alloy matrix composite and a process of forming the extrusion product, can solve the problems of easy corrosion, limited application of each conventional aluminum extrusion product, and insufficient strength support of conventional aluminum extrusion products
Inactive Publication Date: 2008-10-02
CHEN CHIH CHENG
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Benefits of technology
The present invention provides an extrusion product made of matrix composite aluminum alloys that have multiple characters. This allows for the creation of a more complex and versatile product.
Problems solved by technology
However, a conventional aluminum extrusion product is made by only single series of aluminum alloy.
Each aluminum alloy has its own nature property so the application of each conventional aluminum extrusion product is limited by the nature of the aluminum alloy property.
Therefore, some conventional aluminum extrusion products are corrosion-resisting but insufficient for strength support while some conventional aluminum extrusion products are well strength supported but are easy to be corroded.
However, the layer will not stay attached to the aluminum alloy for an extended period because the layer and the conventional aluminum extrusion products are made of two different materials.
Thus, the problem that the conventional aluminum extrusion products do not have both good anti-corrosion and high tensile strength is not solved.
Method used
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[0014]With reference to FIG. 1, an extrusion product, such as a solid extrusion bar, made of matrix composite aluminum alloys in accordance with the present invention has producing procedure as follows:
[0015]At least two different aluminum alloys are selected from any of the aluminum alloys such as 5 series or 7 series of the AA standard that are formulated by The American Aluminum Association Inc. The aluminum alloy such as 5051, 5052, 5056, 5083, 5086, 5456 from the 5 series comprises Al, Mg, etc. that has excellent anti-corrosion in marine or industrial environments and good welding features. Additionally, the aluminum alloy such as 7001, 7005, 7046, 7050, 7055, 7075 from the 7 series comprises Al, Zn, Mg, Cu, etc, offers the superior tensile strength. For example, the 7075 aluminum alloy has a 150 kg / mm2 fatigue strength, a 34.0 kg / mm2 shearing strength and a 58.5 kg / mm2 ultimate tensile strength;
[0016]One of the at least two aluminum alloys is selected to be a core;
[0017]One of...
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Abstract
A process of an extrusion product made of matrix composite aluminum alloys has multiple steps. First, provide at least two different aluminum alloys. Select one of the aluminum alloys to be a core. Select the rest of the aluminum alloys to be at least one hollow covering and mounted around the core to form a billet. Heat the billet to become deformable. Then extrudes the billet to become the extrusion product with matrix composite aluminum alloys. Hence, the core and the covering can be securely bonded to each other.
Description
BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to an extrusion product made of aluminum / aluminum alloy matrix composite and a process of forming the extrusion product, and more particularly to an extrusion product made of more than two different kinds of aluminum alloys.[0003]2. Description of the Related Art[0004]Aluminum alloys are widely used as raw materials for such as extrusions. To fabricate an extrusion material, an aluminum alloy is formed into a cylinder billet with a certain height. Then the aluminum billet is heated to be deformable. At last the aluminum billet is extruded to form the extrusion product such as bar, rod, tube, plate, profile.[0005]However, a conventional aluminum extrusion product is made by only single series of aluminum alloy. Each aluminum alloy has its own nature property so the application of each conventional aluminum extrusion product is limited by the nature of the aluminum alloy property. For example...
Claims
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IPC IPC(8): C22C21/00C22F1/04
CPCC22C21/00C22F1/04
Inventor CHEN, CHIH-CHENG
Owner CHEN CHIH CHENG