From the Sector

• New composite e-Mobility application
• Multi-year substantial contract

After prototypes for a Chinese automotive manufacturer, a major order from a North American automaker, and yet another order for a European sports car manufacturer, SGL Carbon has now been nominated by BMW Group to produce a cover component for battery enclosures in series. This substantial multi-year order will include the production of an innovative glass-fiber-based cover plate for the battery housing for usage in a future plug-in hybrid model of BMW Group.

Materials made of composites are suited for battery enclosures for different reasons: Besides their light weight, which enhances the electric vehicle’s range, fiber-reinforced plastics offer high stiffness. In addition, they meet high requirements for water and gas tightness and feature excellent fire protection properties. Composite materials can also help to achieve improved structural stiffness of the underbody, e.g. to protect against penetration, as well as an optimized thermal management. Carbon fibers are ideal for especially stressed structures or load-bearing elements, such as the underbody panels and side frames. For components subjected to less stress, such as battery box covers, glass fibers or a fiber mix may suffice.

In addition to the new application for the hybrid model battery enclosure, SGL Carbon will continue producing the usual components made of carbon-fiber-reinforced plastic for the BMW i3 and delivering materials for the Carbon Core body of the BMW 7 series, and has been nominated as the supplier for all carbon materials - fibers, textiles, stacks - for the BMW iNEXT, set to be launched in 2021.

• Series order for a total of 500 units
• First SGL Carbon component project for manned autonomous aviation

SGL Carbon will begin serial production of landing gear made from braided carbon fiber material early this year. The landing skids will be installed in around 500 air taxis worldwide over the next two years.

The air taxis will be powered by several electric motors. To optimize the range of the taxis, every single gram counts. Measuring about two meters in length and 1.5 meters in width, the ultra-light landing skid will weigh less than three kilograms, making it about 15 percent lighter than a similar component made from aluminum. This increases the potential flight time capacity of the air taxi which is a key differentiator for the air taxi operator.

“With with our landing gear we help to shape this very new, promising application of manned, autonomous civil aviation. This involvement also demonstrates our wide range of services. From engineering, to prototype manufacture, to serial production with our own materials – all of our competences along the entire value chain made a contribution to the project ,” emphasizes Dr. Andreas Erber, Head of the Aerospace segment of the Composites – Fibers & Materials business unit at SGL Carbon.

The landing gear was developed in close collaboration between customer experts and specialists from SGL Carbon. The carbon fibers for the component are produced at the SGL Carbon plant in Muir of Ord, Scotland. The final part is being manufactured at the SGL Carbon site in Innkreis, Austria.

STAMFORD, Conn. – At this year’s CAMX conference, taking place on September 24-26 in Anaheim, CA (Booth L42), Hexcel will promote its broad portfolio of composite innovations for aerospace and industrial applications.

On display at the Hexcel booth, visitors will see an integrated wing panel demonstrator made with HiMax™ non-crimp reinforcements that were specially developed to complement a new generation of infusion resin systems. Visitors will also see a wing box demonstrator made from HiTape® dry carbon reinforcements. Both parts were injected with Hexcel’s RTM6 infusion resin and incorporate a toughening veil to enhance mechanical properties to meet the structural requirements for aerospace parts.

With 50 years of experience and the most qualified carbon fiber positions on aerospace programs in the industry with its comprehensive range of high-strength, high-strain PAN-based carbon fibers, Hexcel continues to innovate and is introducing a new fiber to its portfolio. HexTow® HM54 combines high modulus and high tensile strength, which allows structural designers to achieve higher safety margins for both stiffness and strength-critical applications. HexTow® carbon fibers are excellent not only for aerospace applications but also industrial and recreational applications. HexTow® carbon fibers are excellent not only for aerospace applications but also industrial and recreational applications, examples of golfing applications will be on display.

Additive manufacturing is on the forefront of innovation for composite technologies, and Hexcel is leading the way with its HexAM® additive manufacturing process. HexAM® additive manufacturing combines high performance PEKK thermoplastics with carbon fiber to produce flight-ready 3D printed HexPEKK® parts. HexPEKK® structures offer significant weight, cost and time-to-market reductions, replacing traditional cast or machined metallic parts in highly demanding aerospace, satellite and defense applications.

HexPly® M77 snap-cure prepregs are yet another example of Hexcel technology leading the way. HexPly® M77HF, the latest member of this quick-curing prepreg family, is revolutionizing the world of composites for high-performance sporting goods with its faster production times and excellent surface quality. It will be featured in the Hexcel booth in two products – a carbon fiber Goode water ski which is setting records in the competitive world with its precision and durability, and in a HED cycling wheel noted for its aerodynamics and light weight.

Among Hexcel’s latest technologies are the RF Interference Control materials made by ARC Technologies, a Hexcel company. A selection of these industry-leading custom RF / EMI and microwave absorbing composite materials for military, aerospace and industrial applications will be on display at the Hexcel booth.

HexForce® bias weave woven reinforcements are a patented solution to optimize material usage. These bias weave reinforcements are continuous rolls of carbon fiber fabric in which the warp and weft yarns are oriented on the bias at +/- 45° which can reduce prepreg waste up to 60%. Visitors at CAMX will be able to see this new woven reinforcement and learn more.

Frau Dr.-Ing. Monireh Fazeli¬ Zoghalchali vom Institut für Textilmaschinen und Textile Hochleistungswerkstofftechnik (ITM) der TU Dresden wird am 23. Oktober 2018 für ihre Dissertation "Technologieentwicklung für gewebte Knotenstrukturen mit komplexer Geometrie in Integralbauweise für Faserverbundanwendungen“ mit dem Innovationspreis des Industrieclubs Sachsen 2017 ausgezeichnet. Der Preis ist mit 5.000 Euro dotiert und wird jährlich an einen Absolventen der TU Dresden verliehen.

Die Entscheidung zur Vergabe des Innovationspreises des Industrieclubs Sachsen 2017 erfolgte im Juni 2018 durch ein Preisgericht. Am 23. Oktober findet nun die feierliche Verleihung durch den Industrieclub Sachsen in Dresden statt. Frau Dr. Fazeli absolviert derzeit bis Ende März 2019 im Rahmen des DAAD-Förderprogramms P.R.I.M.E. (Postdoctoral Researchers International Mobility Experience) einen internationalen Forschungsaufenthalt am Centre for Advanced Composite Materials (CACM), University of Auckland in Neuseeland. Deshalb wird Herr Professor Chokri Cherif, Institutsdirektor des ITM und Doktorvater von Frau Dr. Fazeli, den Preis stellvertretend entgegennehmen.

Im Rahmen ihrer Dissertation, die Frau Dr. Fazeli im Dezember 2016 mit der Bestnote „summa cum laude“ abschloss, wurde eine CAE-gestützte Prozesskette zur effizienten automatisierten Fertigung komplexer gewebter Knotenelementhalbzeuge aus Carbonfasern für Rahmentragwerke in Fahrzeugen, Flugzeugen, Maschinen und Anlagen sowie der Architektur realisiert. Für diese Rahmentragwerke in Leichtbauweise steht derzeit bereits ein umfangreiches Sortiment aus faserverstärkten Profilen zur Verfügung. Die erforderlichen Knotenelemente zur Verbindung der Profile sind entweder nach wie vor aus Metall oder müssen extrem aufwändig und somit kostenintensiv gefertigt werden.

Mit der neuen automatisierten Technologie ist es möglich, hochkomplexe, in mehreren Raumrichtungen verzweigte Knotenelemente webtechnisch in einem Stück zu fertigen. Damit entfallen die Prozesse des Zuschnittes und sehr aufwändigen Fügens von Teilflächen. Die Bauteilperformance wird deutlich gesteigert. Am ITM wird in enger Zusammenarbeit mit der Firma MAGEBA International GmbH und durch die finanzielle Förderung von Forschungsprojekten über die AiF im Rahmen des Programms zur Förderung der Industriellen Gemeinschaftsforschung (IGF) vom Bundesministerium für Wirtschaft und Energie (BMWi) die gesamte Prozesskette vom CAD-Entwurf, über die strukturelle Entwicklung, die Erstellung der Maschinensteuerprogramme, die textiltechnische Umsetzung und die Bauteilkonsolidierung erfolgreich erarbeitet.

STAMFORD, February 26, 2018 - at JEC World 2018, taking place in Paris March 6-8, Hexcel will display an array of product innovations for customer applications in aerospace, automotive, wind energy and marine markets.
Hexcel’s banner at the exhibit hall entrance features the Airbus H160 helicopter and A350 XWB aircraft, both with carbon fiber livery to acknowledge the high Hexcel composites content in both programs. Hexcel’s reinforcements, prepregs, adhesives and honeycomb materials were selected for the H160’s composite fuselage structures and main rotor blades, contributing to the lightweight fuel-saving design and performance optimization. Airbus has loaned Hexcel an H160 BLUE EDGE blade to display on the booth.

Among the Aerospace promotions at Hexcel’s booth are carbon-reinforced 3D printed parts, made from Hexcel’s HexAM™ additive manufacturing technology that uses PEKK ultra-high performance polymers. Hexcel acquired this technology from Oxford Performance Materials in December 2017 to provide a weight-saving solution for intricate parts in highly demanding aerospace, satellite and defense applications. HexPEKK™ structures offer significant weight, cost and time-to-market reductions, replacing traditional cast or machined metallic parts with a new technology.

Aircraft engines benefit from a number of Hexcel technologies that will be promoted at JEC 2018, including HexShield™ honeycomb that provides high temperature resistance in aircraft engine nacelles. By inserting a thermally resistant material into honeycomb cells, Hexcel provides a core product with unique heat-shielding capabilities that allows for the potential re-use of material after a fire event.
Another honeycomb innovation from Hexcel is Acousti-Cap® broadband noise-reducing honeycomb that significantly improves acoustic absorption 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 (Multi-Degrees of Freedom and 3 Degrees Of Freedom), offering an acoustic liner that is precisely tuned to the engine operating conditions. These technologies have been tested at NASA on a full engine test rig and meet all 16 design conditions without trade-offs. An example of this technology will be on display at JEC 2018.

Rounding off the aircraft engine exhibits is a CTi fan blade for new generation lightweight turbofan engines from Rolls-Royce, manufactured from Hexcel’s HexPly® M91 high toughness and impact-resistant epoxy prepreg. Hexcel supplies HexPly® M91 as slit tape for the automated lay-up of the complex aerodynamic shape, with a constantly changing thickness across the blade length. The blade which is thinner and lighter than titanium fan blades is currently undergoing flight tests.
Hexcel’s HiTape® and HiMax™ dry carbon reinforcements that were developed for the automated lay-up of preforms for resin-infused aerospace structures will be promoted at the show. Two demonstrator parts, one made with HiMax™ and one with HiTape®, were both infused with HexFlow® RTM6 resin to demonstrate the potential benefits of an integrated design for aircraft skins, spars and stiffeners that meets OEM requirements for production rate increases and cost effectiveness.

Hexcel is also introducing its new range of HiFlow™ advanced liquid resins for aerospace structures manufactured by liquid molding technologies. Based on novel proprietary chemistry, the new resin family will enhance the performance of composites and ease processing when combined with HiTape® and HiMax™ dry carbon reinforcements. HiFlow™ HF610 is the first resin in the range.
Hexcel’s range of high performance adhesives has expanded considerably following the company’s acquisition of Structil last October. Hexcel is relaunching the acquired products under the new HexBond™ brand name at JEC World. This fast-growing range of pastes, liquid shim and film adhesives has a wide spectrum of operating temperatures and is in qualification with a large number of aerospace and industrial OEMs.
In the Planet Aerospace area at JEC, Daher and Hexcel will jointly display an aircraft spar manufactured from HexPly® M56 prepreg. Hexcel’s Neil Parker and Daher R&T Director Dominique Bailly will give a joint presentation focusing on the materials used and the benefits for the finished part. The aircraft spar was designed and manufactured by Daher using Hexcel’s HexPly® M56 prepreg, in slit tape format, that was developed for automated deposition and out-of-autoclave curing. The spar was manufactured using only the vacuum bag process and demonstrates very low porosity levels. It is currently undergoing testing and validation through CORAC funding.

Hexcel’s Automotive promotions at JEC World 2018 include a new prepreg for composite leaf springs, HexPly® M901. In contrast to steel leaf springs used for suspension on vans, trucks and SUVs, newer composite versions offer many advantages including weight savings of up to 70%, high corrosion resistance, optimized system integration and superior performance. Hexcel’s HexPly® M901 prepreg raises the bar further, reducing mold cure time below 15 minutes, a 50% reduction compared to standard industrial prepregs. HexPly® M901 provides 15% higher mechanical performance, with enhanced fatigue properties. It also operates at high temperatures, providing a Tg of up to 200°C following a post cure. Hexcel’s expertise in manufacturing heavy weight glass UD prepregs, with fiber areal weights of up to 1600gsm, allows the company to offer a highly cost-competitive solution for the rapid manufacture of these safety critical components.

Hexcel is constantly seeking ways to ensure that customers obtain the maximum benefit from composites and has recently acquired state-of-the-art simulation technology that accurately predicts how HiMax™ non-crimp fabrics will drape in a mold. Working in collaboration with Nottingham University Hexcel has created a car seat shell, for which the material selection was optimized using this new drape simulation technology. Visitors to Hexcel’s stand at JEC will see an on-screen demonstration that illustrates how the simulation tool operates, predicting process and performance and ensuring that the optimum fabric architecture is quickly identified, reducing the need for expensive trial programs.
Hexcel’s HexMC®-i 2000 carbon fiber/epoxy molding compound has been successfully used by Audi to manufacture a high-performance engine cross brace. HexMC®-i is a fast curing high-performance molding material, suitable for the series production of complex shaped parts and providing excellent mechanical properties. The Audi cross brace covers the engine, providing torsional stiffness for enhanced drive dynamics.

Hexcel’s product offering for customers in the Marine industry has expanded following the acquisition of Formax in 2016 and Structil in 2017. At JEC World, Hexcel will promote its enhanced portfolio of carbon fibers, prepregs, woven reinforcements and multiaxial fabrics for builders of racing catamarans and luxury yachts.
Marine customers have supplied a number of parts for display to illustrate their expertise in manufacturing composite structures from Hexcel materials. These include part of a Diam 24 yacht mast made by ADH Inotec from Hexcel’s HexPly® M79 fast curing, low temperature cure prepreg. ADH Inotec purchased the prepreg from Composites Distribution, a Hexcel Official Distributor that also supplied HexPly® M9.6 prepreg to Lorima for the Outremer 5X catamaran mast section on display. Part of Lorima’s 42m wing mast for a multihull racing boat made with HexPly® prepreg from Vert-Le-Petit (formerly Structil) will complete the marine display.

Hexcel’s innovations for Wind Energy include Polyspeed® pultruded laminates for load-carrying elements in wind blades. These continuous cross-section profiles, made from a polyurethane matrix reinforced with unidirectional carbon fiber, provide consistently high mechanical properties, including high stiffness, fracture toughness and shear strength, combined with low weight and durability. Visitors to Hexcel’s stand will see a 2m diameter coil of pultruded carbon laminate that contains 255m of material in a single roll. This technology offers an economical way of reinforcing large-scale composite structures such as wind turbine blades. Hexcel will also launch its surface finishing prepreg for wind turbine blades and components. This provides a tough, durable and ready-to-paint blade surface without the use of gel coat and results in faster blade manufacture, saving time in production and reducing material costs. The benefits of the new surfacing prepreg will be demonstrated via a wind blade exhibit that has been given four different treatments across the blade surface. These include a section with gel coat, a section of standard prepreg without gel coat, and a section where a fleece has been added to improve surface quality but still requires preparation before painting due to pin holes. The final section made with new HexPly® XF2P surfacing prepreg has a ready-to-paint surface, straight from the mold, without any requirement for gel coat, fleece or finishing operations.