DWA-USA, the global leader for Aluminum
Metal-Matrix-Composites for Lighter Weight Designs
Pratt & Whitney Fan Exit Guide Vanes
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Pratt & Whitney Fan Exit Guide Vanes

6092/SiC/17.5p-T6 Fan Exit Guide Vanes (FEGVs) have been in service on Pratt & Whitney’s PW4000 family of engines on the Boeing 777 for 20 years as a replacement for carbon fiber composite. The extruded, net-shape double-hollow Al MMC airfoil design is weight competitive, provides high-stiffness for flutter resistance, excellent fatigue strength, and erosion and ballistics damage resistance far superior to the carbon fiber composite it replaced. The selection of DWA-USA’s Al MMC has significantly extended the service life of FEGVs.

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Al MMC Fan Exit Guide Vanes
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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