DWA-USA, the global leader for Aluminum
Metal-Matrix-Composites for Lighter Weight Designs
Extrusions
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Simple Round and Rectangular Geometries

DWA-USA supplies Al MMC extrusions of simple, round or rectangular geometries, and precise-to-form mill shapes with open or closed sections based on specific customer needs.

Ideal SiC particle loadings for complex extrusions is 15-25 Vol%.

Area reduction ratios of greater than 10:1 optimize Al MMC strength, ductility and fracture toughness.

Al MMC Round Bar Extrusion
Al MMC Complex Shapes

Complex, Precise-to-Form Shapes

Our 6092 alloy Al MMCs maintain their fine grain size through the extrusion process and are tailored for applications requiring high strength- and stiffness-to-weight. Al MMC designs for stiffness critical aerostructures can be 35% lighter than conventional aluminum and as much as 20% lighter than carbon fiber composite because they exhibit isotropic mechanical and physical properties.

The Isotropic Mechanical Properties of Al MMC Extrusion

Units:
ENG
6092/SiC/17.5p-T6
Density= 0.1011 lb/in3 		 F, ty 
ksi		 F, tu 
ksi		 elong. 
%		 E 
msi
Extrusion,
0.070in Thick		 Typical L 65 74 5.8 15.2
Typical LT 66 74 6.0 14.6
% Change, L to LT 1% 1% 3% -4%
SI
6092/SiC/17.5p-T6
Density= 2.80 g/cm3		 F, ty
MPa		 F, tu
MPa		 elong.
%		 E
GPa
Extrusion,
1.78mm Thick		 Typical L 450 509 5.8 105
Typical LT 456 513 6.0 101
% Change, L to LT  1% 1% 3% -4%
Case Studies

Fielded Applications

DWA-USA specializes in new aluminum-based powder metallurgy materials and applications development. We serve our customers throughout the entire development cycle, whether it be an upgrade to an existing design or starting from the ground up. Our track record for transitioning prototyping efforts to real world serial production is unparalleled.

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Density Adjusted Properties of Aluminum MMCs Compared to Steel, Titanium and Aluminum

density-adjusted-properties-of-aluminum-mmcs

One of the clear advantages of Al MMCs compared to conventional metallic materials is greatly enhanced strength and stiffness. These property gains are achieved without impacting material density, so the specific properties of Al MMC are dramatically increased. Al MMCs are also isotropic composite materials. Their design space is not dependent on reinforcement orientation.

Primary Processing
Primary Processing
Secondary Processing
Secondary Processing
Finishing
Finishing
DWA Aluminum Composites

Aluminum Metal-Matrix-Composites Manufacturing

The Al MMC manufacturing process can be divided into three elements- primary processing, secondary processing and finishing. Unlike other composite materials, after primary processing of the billet, Al MMCs offer a high level of “fit, form and function” when inserted into the industrial manufacturing stream, making use of conventional facilities and equipment.

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