KraussMaffei is presenting groundbreaking composite solutions at the JEC World in Paris

CFRP components in increasingly shorter cycle times
KraussMaffei is presenting groundbreaking composite solutions at the JEC World in Paris
– Wet molding as the cost-effective alternative to the HP-RTM (high-pressure RTM) process
(Munich, February 8, 2016) At the JEC World Composites Show & Conferences (March 8 – 10, 2016) in Paris, KraussMaffei (Pavilion 6, Booth A38) is presenting groundbreaking solutions for manufacturing fiber-reinforced plastic components based on both thermoset and thermoplastic matrix systems. Thanks to the wide-ranging expertise in the areas of reaction and injection molding technology, KraussMaffei provides technologies and systems from a single source as the leading provider on the market.

Development focuses primarily on creating processes and systems that can be used to manufacture lightweight components in large series production, for which there is great demand in vehicle construction. “We will demonstrate our expertise at JEC in many up-to-date application examples. In doing so, we will prove that we offer our customers the right process for optimized production for all corresponding component requirements,” emphasizes Erich Fries, Manager of the Composites/Surfaces business unit at KraussMaffei.

Wet-embedded fibers

One of these groundbreaking technologies for manufacturing high-performance components based on carbon-fiber reinforced plastic (CFRP) is called wet molding, also known as wet pressing. In comparison to classic RTM processes (resin transfer molding) like HP-RTM (high-pressure RTM) and C-RTM (compression RTM), wet molding is characterized by a simpler process chain in which the preform process is omitted completely. For this reason, wet molding is a cost-effective alternative for manufacturing new lightweight components in vehicle manufacturing.

During the wet molding process, a mixing head applies the resin (usually epoxy resin) onto the flat-lying semi-finished fiber product in continuous strips. The fiber product is then passed on to the mold, where it is compression molded. This process has two decisive advantages. It saves valuable cycle time, because the resin can be applied to one component at the same time that the other is curing in the mold. The system can also be more reactive. Charging is no longer necessary in the heated mold, in which a reaction cannot yet occur. These two factors save time, leading to shorter cycle times. It is also possible to use recycled fibers. This makes wet molding an excellent option for industrial processing of recycled fibers in the RTM process.

KraussMaffei wet molding lines are also characterized by a high degree of automation, ensuring short cycle times and high numbers of pieces. At JEC World in Paris, KraussMaffei is presenting current application examples from the mass production of the new 7 series BMW and the i8 electric car.

Thermoplastic lightweight construction

KraussMaffei is presenting exciting applications in the thermoplastic lightweight construction area with FiberForm technology. The process developed by KraussMaffei combines the thermoforming of semi-finished products, called organic sheets, and injection molding in one process. The strength level of fiber-reinforced plastic components is increased through this procedure. The fully automated process enables short cycle times of less than 60 seconds and, therefore, production processes that are ready for large series. Using an airbag housing from Takata as an example, KraussMaffei has further developed the process in multiple steps, resulting in a weight reduction of around half, compared to the first reference component, as well as a reduction of cycle times and manufacturing costs. This was possible for many reasons, including switching from polyamide to polypropylene as a material for the organic sheet matrix and injection molding as well as switching from short glass fiber to long glass fiber reinforcement. 

KraussMaffei at the JEC World
Pavilion 6, Booth A38

About KraussMaffei
The KraussMaffei product brand is internationally recognized for its groundbreaking, multitechnology system and process solutions for injection and reaction molding technology and factory automation. With its standalone, modular or standardized machinery and systems, and a wide, customizable service offering, KraussMaffei is a full-system partner for customers in many industry sectors. KraussMaffei bundles many decades of engineering expertise in plastics machinery and is headquartered in Munich, Germany. For more information:

About the KraussMaffei Group
The KraussMaffei Group is among the world’s leading suppliers of machinery and systems for producing and processing plastics and rubber. Its products and services cover the whole spectrum of injection and reaction molding and extrusion technology, giving the company a unique position in the industry. The KraussMaffei Group is innovation-powered, supplying its products, processes and services as standard or custom solutions which deliver sustained added value along the customer’s value-adding chain. The company markets it’s offering under the KraussMaffei, KraussMaffei Berstorff and Netstal brands to customers in the automotive, packaging, medical, construction, electrical, electronics and home appliance industries. Continuing a long tradition of engineering excellence, the international KraussMaffei Group currently employs around 4,000 people. With a global network of more than 30 subsidiaries and more than 10 production plants, supported by around 570 sales and service partners, the company is close to customers around the world. KraussMaffei has been headquartered in Munich since 1838. For more information: