#Composites

2020-11-19

SGL Carbon and Koller Kunststofftechnik manufacture composite windshield for BMW Group

Skeletal windshield design based on injection molding with carbon fiber profiles (Source: Composites united)

Already in August, SGL Carbon received a multi-year order from Koller Kunststofftechnik GmbH for the production of novel carbon fiber profiles for serial use in windshields for a future high-volume model of BMW Group.

Carbon fibers combined with injection molding replace conventional steel construction

SGL Carbon supplies innovative carbon fiber profiles

Serial use in a future high-volume model of BMW Group

Construction method offers great potential for use in other automotive projects

The profiles are particularly flexible fiber tows, pre-impregnated with thermoplastic resin in various dimensions. They will be compiled by SGL Carbon on the basis of its own 50k carbon fiber at its site in Innkreis, Austria, and subsequently processed by the injection molding experts at Koller to form a skeletal plastic component. The composite component will replace the previous steel-based windshield. Production of the carbon fiber profiles will start in the remainder of 2020 and will then be ramped up gradually over the next few years for the BMW Group model launch.

In the vehicle, the windshield is a connecting element between the roof frames and thus has an important stabilizing function. The carbon fiber profiles add the required stiffness and crash safety to the component. At the same time, they help to significantly reduce the weight of the roof and thus also support the driving dynamics. The injection molding process also enables particularly complex and material-efficient structures. In the BMW Group model, this innovative component concept will cut weight by 40 percent compared to conventional steel designs of the component while creating important space for cable ducts and sensors.

The production of the carbon fiber profiles themselves is also particularly geared to material and process efficiency in large-scale production. The profiles consist of several smaller fiber strands, the so-called rods, and are manufactured using the modern continuous pultrusion process. During product and process development it was one key objective to ensure that material loss during production is almost completely avoided.

"At SGL Carbon, we have been working on the development of thermoplastic carbon fiber profiles for use in injection molding for some time already. This development work is now beginning to pay off. Due to the many advantages and competitive costs, we see a great potential for the technology to be used in other automotive projects too," explains Sebastian Grasser, Head of the Automotive Segment in the Business Unit Composites - Fibers & Materials at SGL Carbon.

Thermoplastic carbon fiber profiles and tape of SGL Carbon (Source: Composites united)

"Innovative lightweight construction with hybrid designs has developed into a strategically conclusive concept for Koller Group's OEM customers," confirms Max Koller, CEO of Koller Group. "SGL Carbon's high level of material expertise, combined with the process know-how of KOLLER Kunststofftechnik and KOLLER Formenbau, create the basis for a promising future in innovative lightweight construction technologies. With this order, the BMW Group has confirmed its confidence in the successful cooperation between SGL and Koller; we are particularly pleased about this", said Max Koller.? ?The Koller Group is a globally operating technology company with plants in Europe and China, as well as NAFTA. The Koller Group develops and manufactures lightweight construction, tools and serial components, primarily for the automotive industry.

SGL Carbon decides to restructure its Carbon Fibers business unit

The Board of Management of SGL Carbon SE today decided, with the approval of the Supervisory Board, to restructure the loss-making Carbon Fibers business unit. SGL Carbon will significantly reduce the business activities of Carbon Fibers and focus on a profitable core. Individual solutions are being developed for all Carbon Fibers sites, including the closure of unprofitable sites.

SGL Carbon evaluates strategic options for the carbon fibers and appoints Dr. Denis Hinz as new head of the business unit

SGL Carbon SE is currently evaluating various strategic options for the Business Unit Carbon Fibers (CF). These include a possible partial or complete divestment of the Business Unit. In a first step, potential interested parties shall be approached promptly with the general data of the Business Unit to determine their interest in an acquisition. If there is sufficient interest, a structured transaction process will be carried out in a second step.

Fewer pores, greater impact tolerance: Peter Dornier Foundation Prize 2026 honours material research on fibre-reinforced composite components for aerospace industry

Microscopically small pores that form during manufacture, or barely visible impact damage, can severely impair the load-bearing capacity and service life of fibre-reinforced composite components. Two young researchers have presented groundbreaking work in this field and will both be awarded the 2026 Peter Dornier Foundation Prize: Dr.-Ing. Benedikt Neitzel from the Technical University of Ilmenau for his doctoral thesis on pore minimisation in the RTM process, and Johanna Buschmann, M.Sc., for her master’s thesis, completed at the German Aerospace Centre, on the improved impact tolerance of 3D fabrics compared to 2D laminates.

JEC Forum Southeast Asia 2026 highlights Taiwan as a strategic hub for the global composites industry

The third edition of JEC Forum organized in Southeast Asia brought together 350+ participants from 22 countries for three active days of high-level Business Meetings, conferences, and networking, emphasizing Southeast Asia’s growing role in the global composites market. Held for the first time in Taipei from 23 to 24 June 2026, following the successful first editions in Bangkok, JEC Forum Southeast Asia 2026 confirmed its position as the region’s leading business platform dedicated to the composites industry.

MEL Composites supports ELA Aviation with advanced composite materials

MEL Composites is supplying advanced composite materials and process consumables to ELA Aviation for the production of its next-generation gyroplanes. The collaboration underlines MEL Composites’ growing role in advanced aerospace mobility, providing lightweight materials designed to improve aircraft performance, manufacturing efficiency and structural reliability.

Rieter sees Barmag integration on track as orders and sales rise

The first half of 2026 was shaped by the successful completion of the largest acquisition in Rieter’s history. The Man-Made Fiber Division enables entry into the growth segment of man-made fibers and sustainably strengthens Rieter’s market position in the Asia region. The expanded Group is now the world’s leading system supplier for the processing of natural and man-made fibers. In the first half of the year, initial cost savings in material costs and operating expenses have already been realized. The targeted synergies are expected to amount to at least CHF 20 million by the end of the 2028 financial year. Due to the completion of the acquisition on February 2, 2026, the first half of the year for the Man-Made Fiber Division only amounts to five months.