CompositesWorld
Issue link: https://cw.epubxp.com/i/576646
55 CompositesWorld.com in aircraft engine nacelles. The acoustic treatment may be positioned at a consistent depth and resistance within the core, or can be placed in a pattern of varying depths and/or resistances, ofering an acoustic liner that is tuned to engine operating conditions. Tested at NASA on a full engine test rig, it met all 16 design conditions without trade-ofs. An example of this new technology will be on display at CAMX. Hexcel will display tooling made from HexTOOL M61, which is used to make CFAN fan blades for the GE90 and GEnx engines and is manufactured by Sawyer Composite (Ft. Worth, TX, US). Visitors also will see carbon fber composite automotive body-in-white (BIW) parts made with HexPly M77 preforms from Hexcel's automated process (see photo, p. 54). The preforms' low tack allows for automated handling by the customer. They require no surface preparation and are designed for one-step bonding and curing in a press, requiring no fnishing opera- tions. Common BIW part joining technologies such as welding can be used, and the parts are compatible with e-coating processes. Building on the attributes of HexPly M77, Hexcel reports that it has now installed a fully automated production line in Austria that converts UD prepreg into 2D preforms in seconds. The process allows prepreg plies of diferent weights and orientation to be combined in the same plybook and includes automated cutting, camera-assisted ply posi- tioning and integration of adhesive and automated packing. Hexcel also will promote its new Prepreg Resin Selector app, focused specifcally on the prepreg products it develops and supplies for aero- space and industrial markets. The app enables users to select the best prepreg resin, based on market and application, cure temperature and maximum service temperature (T g ), and enables the user to view the full range of Hexcel's prepreg resin data sheets. The app is available for download free through the Apple iTunes Store (search Hexcel Prepreg Selector). www.hexcel.com Innegra Technologies (Greenville, SC, US) will feature its full line of olefn-based Innegra fbers and discuss how to integrate Innegra materials into composite products. Proven as reinforcements in the sporting goods industry (in canoes, kayaks, paddles, hockey sticks, tennis rackets and helmets), Innegra's fber products are being deployed in other composites markets, such as automotive, marine, industrial and travel (luggage and cases). During the summer, Innegra fber was featured during a three-day demonstration at the EAA AirVenture Show (Oshkosh, WI, US). The demonstration consisted of using TeXtreme fabric reinforced with Innegra fber to build an 82% scale F4 U Corsair, a replica Chance Vought fghter from WWII. At CAMX, the company will feature Innegra S and award-winning Innegra H fbers. Innegra S fber is an olefn-based, multiflament fber available in black and white; Innegra H fbers are hybridized, multiflament fbers that contain Innegra S and other high-performance fbers, including but not limited to carbon, glass, basalt and aramid. Technical sales representatives will be on hand at the show to answer questions about Innegra fber and ofer assistance in using Innegra products in composite and rope applications. Innegra High Density Urethane Tooling Board and Core Material (800) 845-0745 • www.precisionboard.com • Closed cell structure • No out-gassing • 15 standard densities • Exceeds aviation flammability standards Make it Precision Board Plus CAMX 2015