From the Sector

AZL Aachen GmbH announces a ‘Joint Partner Project’ focusing on the technology for reinforcing electric motors with fibre composite reinforcement sleeves. The nine-month project will investigate current and future applications for electric motors, their requirements for armouring sleeves and provide technological insights.

The project, entitled "Rotor Sleeves for Electric Motors: Potentials for Composite Materials and Technologies", aims to address the growing demand for more efficient, powerful and compact electric motors in mobility and industrial applications.

Compared to metals, composite rotor sleeves with their high stiffness, low density, almost zero thermal expansion and favourable electromagnetic properties are particularly suitable to contribute to all the development goals.

The application, manufacturing and material technologies for composite rotor sleeves have been proven to be mature, so far mostly in niche high power applications. Due to the increasing demand for efficient electric drives, the demand for rotor sleeves and the corresponding production volumes is growing rapidly. Composite based rotor sleeves are expected to expand into mass applications for electric vehicles, power tools, machine tools, electric aircraft and other industrial applications.

AZL will bring together experts from across the value chain to investigate current and future applications, analyse requirements and assess the impact on design, material selection and production concepts.

Companies interested in the project can join the consortium consisting of Kümpers GmbH, Rassini and Schunk Kohlenstofftechnik GmbH, among others, until the kick-off on September 12th, 2024.

Die AZL Aachen GmbH, bekannter Innovationspartner für Industriekooperationen auf dem Gebiet der Leichtbautechnologieforschung, startet eines neuen Projekts mit dem Titel "Trends und Designfaktoren für Wasserstoffdruckbehälter". Das Projekt wird Fragestellungen der Industrie in Bezug auf die Wasserstoffspeicherung adressieren.

AZL Aachen GmbH, a recognized innovator in lightweight technologies research and industry collaboration, announces the initiation of a new project titled "Trends and Design Factors for Hydrogen Pressure Vessels". The project aims to address industry needs surrounding hydrogen storage.

Hydrogen has gained significant attention as a key technological solution for decarbonization, with high pressure storage and transportation emerging as vital components. Its applications extend from stationary storage solutions to mobile pressure vessels employed in sectors such as transportation and energy systems.

The AZL team, renowned for its high reputation in providing market and technology insights as well as developing component and production concepts in the format of Joint Partner Projects seeks for companies along the whole composite value chain interested in further developing their application know how in this economically highly relevant field.

The project will provide an in depth exploration of market insights, regulatory standards, and intellectual property landscapes. Beyond this, there is a dedicated focus on staying updated with state of the art and advancements in design, materials, and man ufacturing techniques.

An integral component of the project involves the creation of reference designs by AZL´s engineering team. The reference designs will encompass a variety of pressure vessel configurations and will consider a diverse range of materials and production concep ts.

With the scheduled project start in October 2023, and a project timeline of approximately nine months, AZL encourages companies active across the composite value chain to participate. Companies interested in participating or seeking further information should reach out directly to the AZL expert team.

Gemeinsam mit insgesamt 46 Industriepartnern konnten mehrere, verschiedene Konzepte für Kunststoff-basierte Multimaterial-Batteriegehäuse erarbeitet werden, mit denen deutliche Einsparpotentiale bei Gewicht und Kosten möglich sind. Im Projektverlauf kristallisierten sich zwei wichtige Kernthemen heraus, die in Folgeprojekten gesondert behandelt werden sollen: Bodenaufprallschutz und Feuerbeständigkeit. Diese zwei Folgeprojekte starten am 26. Januar 2022. Ein Projekt zur Entwicklung und Realisierung von Prototypen für Mitte nächsten Jahres 2022 ist in Planung.

Batteriegehäuse gehören zu den Schlüsselkomponenten in E-Fahrzeugen und werden derzeit in der Regel aus Aluminium hergestellt. Genau diese Komponente analysierte das AZL in dem jetzt durchgeführten Projekt mit einem großen Konsortium aus Automobilherstellern, Automobilzulieferern, Rohstoffherstellern und Maschinenherstellern. „Der enorme Zuspruch aus der Industrie unterstreicht die Relevanz des Themas“, freut sich der Projektleiter Warden Schijve, der zudem sehr zufrieden mit dem Verlauf und den Ergebnissen ist. Schließlich lassen sich bis zu 36 % des Gewichts und bis zu 20 % der Kosten einsparen, wenn anstelle herkömmlicher Lösungen Multi-Material-Verbunde auf Basis von Kunststoffen zum Einsatz kommen.

Um zu den Ergebnissen zu gelangen, hat das AZL unter Mitwirkung seiner Partnerunternehmen, zu denen unter anderem Audi, Asahi Kasei, Covestro, DSM, EconCore, Faurecia, Formosa, Hengrui, Hutchinson, IPTE, Johns Manville, Magna, Marelli und Teijin, gehörten, zunächst fünf Subkomponenten eines Batteriegehäuses definiert: die Gehäusewanne, die Bodenschutzplatte, den Crash-Rahmen, die Querbalken und den Gehäusedeckel. Außerdem analysierten die Partner insgesamt 44 marktrelevante, existierende Serienkomponenten und Konzepte genauer und erstellten eine umfangreiche Übersicht über die verschiedenen Standards sowie Anforderungen auf nationaler, internationaler und OEM-Ebene. Prämisse dabei war, gleiche oder gar bessere mechanische Kennwerte zu erreichen als bei herkömmlichen Lösungen. So sollten beispielsweise mindestens gleiche Steifigkeiten, Sicherheiten bei seitlichem Aufprall, EMI-Abschirmung sowie Flammschutz vorhanden sein. Um nun die alternativen Lösungen zu ermitteln, entwickelte das AZL 20 Designkonzepte mit unterschiedlichen Materialkombinationen. Zur Analyse und Auslegung der verschiedenen Konzepte wurden mehr als 500 FEM-Modelle erstellt und über 1.500 CAE-Simulationen durchgeführt.

Während sich Folgeprojekt 1 mit einer anwendungsbezogenen Testmethode und der Untersuchung der Sicherheit verschiedener Materialkombinationen für den Bodenaufprallschutz beschäftigt, steht in Folgeprojekt 2 die Flammresistenz verschiedener Materialien und Materialkombinationen im Vordergrund. Ziel ist es Prüfverfahren zu entwickeln, die es erlauben, die Aufprall-/Feuerbeständigkeit auf Materialebene unter Berücksichtigung der spezifischen Anforderungen an ein Batteriegehäuse im Vergleich zu Standardmaterialien zu untersuchen.

Firmen mit Interesse an Herstellung von Batteriegehäusen können sich an Philipp Fröhlig und Alexander Knauff wenden:
Philipp Fröhlig, AZL Aachen GmbH, Senior Project Manager, Tel: +49 241 47573514, philipp.froehlig@azl-aachen-gmbh.de
Alexander Knauff, AZL Aachen GmbH, Manager Industrial Services, Tel: +49 241 47573516, alexander.knauff@azl-aachen-gmbh.de

Sustainability and environmental responsibility are important developments for the current design of productions and products. In order to obtain a comprehensive evaluation of the potential of bio-based composites, the AZL, together with an industry consortium, is investigating the market potential, future applications and relevant technologies for bio-based composite materials. The 5-month market and technology study will start on October 22nd, 2020 and is open to interested companies. Companies such as REHAU, an Automotive Tier 1, Asahi Kasei, Johns Manville, Mahr Metering Systems and several material manufacturers are participating in the study.

Bio-plastics are well established in industry, especially in packaging applications. The market for biopolymers is expected to grow from USD 10.5 billion in 2020 to USD 27.9 billion in 2025. At the same time, bio-based raw materials, such as natural fibers, are available on the market in a cost-effective manner. Composites with wood or natural fiber content are also increasingly used in products.

Dr. Michael Emonts, Managing Partner of AZL: "Together with our partner companies we want to identify hidden business potential for composites with bio-based materials. To do so, we will reapply our established approach for market and technology studies: Based on a detailed market analysis, we will dive deep into the technological evaluation of technologies, applications and business cases.”

Based on a detailed market segmentation, AZL's technology experts analyze the various market segments in terms of their size, growth potential, relevant players and existing and future applications. For the identified applications, the participants in the study will receive detailed insight into the respective technical and legal requirements as well as an overview of value chains, processes and materials. In the following, the strengths and challenges of bio-composites compared to conventional materials are elaborated. The consortium will select the components with the highest potential, for which suitable production scenarios will be developed and analyzed in terms of costs in a business case analysis.

"We are participating in the AZL study to identify and evaluate new product areas with bio-materials. The technological analyses of the AZL studies have already helped us in the past to initiate new developments," says Dr. Steven Schmidt, Director Technology Platforms Materials at REHAU, explaining the motivation for working with the AZL and the industry consortium. "As one of the 50 Sustainability & Climate Leaders, we at REHAU are incorporating environmentally friendly materials into more and more products. Wherever the company is active - from the furniture and construction industries to the automotive industry - REHAU is already developing and manufacturing high-quality products from recycled raw materials. By 2025, REHAU plans to increase its recycling rate across the Group to significantly more than 15 percent and at the same time reduce CO2 emissions by at least 30 percent," adds Dr. Steven Schmidt.

Bio-composites will also be the topic of the upcoming Lightweight TechTalk by AZL on September 29, 2020. Experts from industry and academia will give technology and market insights on sustainability and recycling of composites in 6 presentations. Registration is free of charge at: https://azl-aachen-gmbh.de/termine/recycling-of-composites/.

The kick-off of the project will take place on October 22nd, 2020 in the form of a video conference. Further background information on the project can be found under the following link: https://azl-aachen-gmbh.de/wp-content/uploads/2020/09/2020-251_OP_Bio-Bases_Composites.pdf

In the AZL Workgroup "High-Performance SMC", a project was developed in cooperation with M-Base, the IKV and the AZL partner network for the efficient and standardized provision of engineering data for SMC. Within the scope of the project, companies can participate in the definition of the required characteristic material data, the guidelines for the production of test specimens and the test specifications.
Sheet Moulding Compounds (SMC) are used in various application areas such as vehicles, electronics, construction and infrastructure.

Driven by the requirements to reduce the production costs of lightweight components, a new generation of SMC components with high mechanical properties is of highest relevance. SMC offers enormous potential to realize structural components with good lightweight characteristics at significantly reduced costs compared to conventional continuous fiber-reinforced components.
In order to further establish SMC in broad industrial applications companies participating within the AZL Workgroup recognized the value of a data bank for data harmonization of SMC to provide the possibility of easily finding the right material with its characteristics for the needed specific requirements.

“The segment of SMC is with 250,000 tons production per year the largest composites market in Europe. I am very pleased that we start now with the project of data harmonization along the complete value chain. The goal is to have a similar data base as already established by Campus® for thermoplastics and thermoplastic composites. Only with a reliable set data we can convince the engineering experts to use SMC in a larger variety of applications,” says Dr. Michael Effing, Chairman of the Board of AVK and Composites Germany.

As of right now a databank for engineered thermoplastic materials (by Campus®) already exists and is offering an immense value.
Under the lead of M-Base, Dr. CEO Erwin Baur who has successfully established the CAMPUS database, the AZL, IKV and companies along the value chain of long fibre reinforced SMC initiated to build a CAMPUS-compatible data structure and material characterization methodology during the High-Performance SMC Workgroup Meetings.

• Bangladesh’s biggest denim expo takes place 5-6 November
• The show runs concurrently with the Sustainable Apparel Forum Bangladesh
• From 4-6 November, Bangladesh becomes the perfect meeting point for stakeholders in the global apparel industry

DHAKA - Responsibility is the theme of the 11th Bangladesh Denim Expo which takes place on 5th and 6th November at International Convention City in Bashundhara, Dhaka. The event, now firmly established as one of the world’s leading denim trade shows, runs alongside the Bangladesh Sustainable Apparel Forum.

Bangladesh Denim Expo

Around 100 exhibitors from 11 countries, including host Bangladesh, will participate in this year’s denim expo. Other participating countries are china, Japan, Italy, India, Singapore, Brazil, Spain, Pakistan, Turkey and Germany.

H&M Group is collaborating with Bangladesh Denim Expo for the forthcoming 11th edition of the event and a number of guest speakers will be present from the company, including Pierre Borjesson, head of sustainability, global production. Other guest speakers include Andrew Olah, the founder of Kingpins Denim show, Alice Tonello, R&D director with the Tonello Group, world renowned denim designer, Piero Turk and Jordi Juani, Asia regional director with Jeanologia.

Through a series of product displays, presentations, seminar sessions & panel discussions, the Expo will encourage healthy debate and interaction among exhibitors and visitors to champion a more responsible denim industry. One of these, of course, is sustainability and within this sits the issue of responsibility – an overriding theme of this year’s event. Denim manufacture faces huge challenges with regards its social and environmental responsibility, with production techniques having potentially far-reaching ramifications for the environment as well as people involved in the production process.

However, the industry and its supply chain are making impressive progress on these issues with Bangladesh – now the world’s largest producer of denim – leading the way in terms of addressing some of the sustainability challenges relating to denim production, including excessive use of water and chemicals. Mostafiz Uddin is the organiser of Bangladesh Denim Expo. Uddin has watched with interest the evolution of the denim industry, with each Expo marking continued and gradual progress being made by the more progressive players in the industry.

Uddin says: “The way that business and product development is conducted can have far reaching consequences on the environment, on the people that make the product and the product’s end use & life-span. “It is the duty of all stakeholders in the apparel industry to acknowledge this responsibility and to analyse our business practices, for the benefit of all.” Emphasising the theme of responsibility within Denim Expo is the fact that revenues from the expo support the running and presentation of the Sustainable Apparel Forum.

Sustainable Apparel Forum

The Sustainable Apparel Forum (SAF) is the biggest annual sustainable apparel event in Bangladesh. Bangladesh Apparel Exchange (BAE) along with Bangladesh Garment Manufacturers and Exporters Association (BGMEA) as co-organiser will jointly carry out the 2nd edition of the SAF on 5th Nov 2019.

This is the second edition of the Sustainable Apparel Forum, with the first-ever forum held in 2017 in Dhaka. The objective of this year’s forum is accelerating the momentum of sustainability in Bangladesh apparel industry.

The forum will see more than 50 speakers gathered from Bangladesh and overseas sharing expert opinions across five panel discussions covering current issues in the country’s apparel industry. These include human resources, transparency in business, water conservation, purchasing practices, sustainable chemical management, waste management, circular economy in textiles and climate change to name a few.

Additionally, the conference will host several knowledge building technical presentations from renowned organisations which will cover different issues relating to sustainability, including waste management, protection of the environment and better working conditions.

Speakers at the show include Md. Shahriar Alam, MP, Honourable State Minister, Ministry of Foreign Affairs, Bangladesh, H. E. Benoit Préfonatine High Commissioner, High Commission of Canada, Bangladesh, and Dr. Rubana Huq President, Bangladesh Garment Manufacturers’ and Exporters’ Association, Sheikh Fazle Fahim, President, Federation of Bangladesh Chamber of Commerce & Industries, Pierre Börjesson, Head of Sustainability – Global Production, H&M Group, Tuomo Poutiainen, Country Director, International Labor Organization, Peter McCallister, Executive Director, Ethical Trading Initiative and H.E. Winnie Estrup Petersen Ambassador, Embassy of Denmark, Bangladesh.

Prior to this year’s conference, the Embassy of the Kingdom of the Netherlands in Bangladesh and the Sweden Embassy in Bangladesh will also co-host two roundtable discussion in collaboration with BAE and in association with BGMEA on 4 November, 2019, while H&M, Better Work Bangladesh and C&A Foundation are partners in the event.
The conference will be followed by showcasing different innovative, sustainable & best work practices in RMG manufacturing factories in Bangladesh. Following the discussions, a series of recommendations will be made, and a Sustainability Roadmap for the Bangladesh apparel industry will be formulated.

This year’s SAF promises to be the biggest yet. Added by Mr Mostafiz Uddin in the recent press briefing for the event: “The title for this year’s Sustainable Apparel Forum is enabling sustainability through policy and leadership. The time for talking on sustainability issues is over. It is now time for actions. That’s why the focus of this year’s show is on practical, pragmatic actions the textile industry can adopt to improve its environmental footprint.”

On April 11^th, 2019, the 9 Partner Institutes of the AZL opened the doors of their machinery halls and research labs to provide an extensive and on-site insight into the research and development capaci-ties in the field of lightweight production and composites at the RWTH Aachen Campus. As a special highlight of this year, the AZL presented the "iComposite 4.0" self-optimizing process chain: fiber-spraying - dry fiber placement - adaptive RTM as well as AZL´s new prototype machine development "Ultra-Fast Consolidator Machine" for highly productive and flexible processing of thermoplastic tapes with in-situ consolidation (winner of the JEC World Innovation Award 2019).

More than 100 Participants from external companies as well as from the AZL Network had the possibility to experience updates on the latest lightweight production technologies and equipment, get to know the bene-fital infrastructure on the Campus and network with internationally represented companies of the entire light-weight value chain researches by taking part in five guided tours to the lightweight institutes.

The AZL brought together content in the field of textiles (ITA), plastics and composite materials (IKV), pro-duction technology (WZL, IPT, ILT, and ISF), quality assurance and production-integrated measurement technology (WZL), lightweight design (SLA), automotive production (IKA) as well as multi-material systems and process integration (AZL).

Once a year at the Open Day, the AZL offers an exclusive and widespread unique insight into the R&D capacities of the institutes in the field of lightweight and composite technologies on the campus of RWTH Aachen University. Within walking distance, researchers and students from 9 institutes are working on the latest technologies for the cost-efficient development and production of lightweight components within one of the largest research landscapes in Europe. The research, closely involving industrial companies, covers the entire value chain from fiber production, materials and processing technology to quality assurance and com-ponent testing.

This year, AZL won the JEC AWARD 2019 for the development of the new machine system “Ultra-Fast Consolidator Machine”. This innovative machine system is a result of an 18-months AZL Joint Partner Project, conducted in 2017-2018 by the research partners AZL Aachen and Fraunhofer IPT Aachen, in cooperation with industrial partner companies including Conbility, Covestro, Engel, Evonik, Fagor Arrasate, Faurecia SE, Laserline, Mitsui Chemicals, Mubea Carbo Tech, Philips Photonics, SSDT and Toyota (in alphabetical order).

The new UItra-Fast Consolidator Machine offers both high flexibility and mass production of tailored thermoplastic laminates with reduced scrap. Fully consolidated multi-layer laminates with different fiber directions and minimized scrap (tailored blanks) can be produced in cycle times below 5 seconds with this new scalable machine setup. This individualized mass production is accomplished by a combination of laser-assisted tape placement with in-situ consolidation and a piece-flow principle, which is state of the art in the printing industry but has not been used in such a way within composite production. The achievable productivity is enhanced to more than 500 kg/hour by this piece-flow principle with carriers moved through multiple application stations which are equipped with multiple tape placement applicators. The new machine is scalable: multiple application stations can be added, e.g. for each layer one station for mass production or for each fiber direction one station with a carrier-conveyor carousel: here the carriers are moved multiple times through the application stations.

The system will be commercialized by some of the industrial partners in 2019. The real machine setup has been presented at the AZL booth during the JEC Exhibition in Paris 2019.

The follow-up project has just started and is still open to join for industrial partners. This follow-up project comprises a further upscale of the machine system as well as a preparation of the commercialization by long-term durability tests and further process optimizations using different tape materials.

After many years of successful cooperation on JEC World since 2015, the Aachen Center for Integrative Lightweight Production (AZL) renewed the cooperation with the JEC Group for 2019:

At the dedicated exhibition area called “Composites in Action - JEC Group in partnership with AZL” (Hall 5A, D17), AZL and its 9 Partner Institutes of RWTH Aachen University present their latest research and development results. The innovations covering the whole composite value chain including research results of AZL, Fraunhofer Institute for Production Technology IPT and Fraunhofer Institute for Laser Technology ILT, the Institute of Plastics Processing (IKV) in Industry and the Skilled Crafts as well as RWTH Aachen University institutes including the Laboratory for Machine Tools and Production Engineering (WZL), the Welding and Joining Institute (ISF), the “Institut für Textiltechnik” (ITA), the Institute for Automotive Engineering (IKA), the Institute of Structural Mechanics and Lightweight Design (SLA). Following companies are sponsoring partners of this booth and will present their latest products and services: Hille Engineering, Maru Hachi, TELENE and Textechno.

This year, AZL is very proud to present a new machine system development at their booth:
The real machine setup of the “Ultra-Fast Consolidator Machine” will be shown at the AZL booth (Hall 5A, D17) which is one of three finalists for the JEC AWARD 2019 in the category “Industry and Equipment”.

At the joint stand of the Aachen Centre for Integrative Lightweight Construction (AZL) in Hall 5A, booth D17, the Institut für Textiltechnik of RWTH Aachen University (ITA) will demonstrate its expertise in the field of glass fibres, preforms and textile concrete 12-14 March 2019 in Paris.
The exhibits come from various fields of application and address the automotive, aerospace and mechanical engineering sectors.

1. Innovative glass fibre research at ITA
   The newly constructed induction heated glass fibre production line enables increased flexibility in research. For the first time, glass fibres will be produced live at the ITA booth at JEC World. One of the innovations of the system is the inductively heated bushing. It features a flexible design and consists of a platinum/rhodium alloy (Pt/Rh20) for use in high-temperature glasses.
   The glass fibre production line was designed in such a way that new concepts and ideas can be tested quickly. The modular design allows a high flexibility, the induction system a significantly faster operability.
   Research and development projects can therefore be carried out faster and more cost-effectively.
    
2. DrapeCube - Forming of textile semi-finished products
   The DrapeCube offers a cost-effective design for the production of fibre preforms from textile semi-finished products. It is used in the production of preforms for prototypes and in small series and is suit-able for companies active in the production of fibre-reinforced plas-tics (FRP).
   In the production of FRP components, the preforming process de-fines a large part of the subsequent component costs. In small- and medium-sized enterprises, this process step is often still carried out manually. This results in high quality fluctuations and component prices. Especially in the case of highly stressed structural components, the fluctuation in quality leads to oversizing of the components.
   Thus, the lightweight construction potential of fiber-reinforced plastics is underused. One solution is offered by the stamp forming process adapted from the sheet metal forming industry for shaping rein-forcing textiles. The textile is inserted between two mould halves (male and female) and automatically formed. Due to high plant and tooling costs, this process is used almost exclusively in large-scale production.
   The ITA has developed the DrapeCube forming station which offers a cost-effective alternative and is able to completely reproduce the current state of the art for forming textile half branches. The process steps will be demonstrated in a video at the booth.
    
3. Carbon fibre reinforced plastic (CFRP) preform
   The CFRP preform consists of carbon multiaxial fabrics formed by expanded polystyrene (EPS) to optimise draping quality. Preforms of increased quality can be produced by gentle, textile-compatible forming with foam expansion. For the first time, foam expansion was used to form preforms in such a way that the draping quality is improved compared to classic stamp forming.
   The advantages of the CFRP preform lie in the savings in plant costs, as the investment is much lower. In addition, the proportion of waste is reduced because near-net-shape production is possible. In addition, rejects are reduced, as fewer faults occur in the textile.
    
4. Embroidered preform with integrated metal insert
   The 12k carbon fibre rovings are shaped into a preform using Tai-lored Fibre Placement (TFP) which is a technical embroidery pro-cess. For the further layer build-up, a fastener is not only integrated under the roving layers but also fixed by additional loops. The highly integrative preforming approach offers the possibility of reducing weight and process steps as well as increasing mechanical perfor-mance.
   Until now, inserts were glued or holes had to be drilled in the com-ponent. Bonded fasteners are limited by the adhesive surface. The bonding of fasteners into drilled holes results in high drill abrasion and thus high tool wear.
   The advantages of the embroidered preform with integrated metal fasteners are the reduction of scrap due to TFP preforming and the increase in the specific pull-out force. In addition, it is possible to automatize the production of integrative preforms. This makes the preform with integrated metal fasteners interesting for the automotive and aerospace industries.