EUROPEAN CONGRESS AND EXHIBITION ON ADVANCED MATERIALS AND PROCESSES - EUROMAT 2021

The range of materials used for additively manufactured products is currently still very limited, as the materials often cannot be transferred to this new production technology or cannot compete with conventionally manufactured products in terms of properties. On the other hand, however, additive manufacturing such as laser powder-bed fusion (LPBF) offers completely new degrees of freedom for...

In search of lower emissions in the transportation sector, the focus shifts to alternative energy storage systems. By switching from fossil fuels with a high gravimetric and volumetric energy density and easy storability to battery systems or hydrogen tanks, a new demand for lightweight and multifunctional designs arises. Fiber reinforced materials help to fulfill these requirements, due to...

Hybrid laminates are used as a lightweight material system with high specific strength in e.g. the aerospace or wind-energy industry, where fatigue loads occur over decades of service lifetime accompanied by numerous numbers of cycles, in the very high cycle fatigue (VHCF) range. Especially for safety-relevant components a thorough understanding of the fatigue behavior up to VHCF regime is...

Layered material compounds of thin metal sheets and fibre-reinforced plastics (FRP) combine the advantages of the individual components. A decisive advantage is the tailor-made design by combining different compositions, material fractions and fibre orientations depending on the application and load direction. In this work the thermoplastic based hybrid laminate CAPAAL 2/1 composed of a 1.25...

The usage of multi material design in modern vehicles and particular in the body in white (BIW) production is steadily rising to fulfil demands of emission laws and conservation of resources. Besides the conservative joining methods for a multi material design (e.g. screws and rivets) the well-known hybrid casting with steel inserts and aluminium can be used with the advantage of reducing the...

Aluminium alloys have a wide range of applications, especially in the fields of aviation and aerospace. However, the complexity of the manufactured parts is sometimes limited when produced with conventional manufacturing processes. With the use of additive manufacturing techniques, near net-shape parts with a great structural complexity can be produced. When it comes to manufacturing...

In laser powder bed fusion (L-PBF), the mechanical performance of fabricated parts are significantly improved by hot isostatic pressing (HIP) as the density increases (pores are closed) and the microstructure improves. HIP ensures consistent and defect-free material, and consequently, this high-temperature and high-pressure process is often a requirement for safety-critical aerospace...

In recent years advanced high-strength steels (AHSS) including dual phase (DP) and complex phase (CP) steels have been increasingly used in automotive lightweight design, as these steel grades may improve the crashworthiness without increasing the weight of car bodies. The good formability of AHSS makes them particularly suitable for deep-drawing applications. Hence, the present work...

In recent years aluminum alloy sheets have been increasingly used in the automotive industry for producing lightweight vehicles. However, the complex tribological system and the occurrence of adhesive wear makes forming of aluminum alloys challenging. In particular temperature-induced friction during deep drawing may remarkably alter the tribological system. Therefore, tribological...

Injection molding of short fiber reinforced thermoplastics enables affordable production of complex geometries. Therefore, injection molded components conquer more and more the section of structural parts, especially in the automotive industry. The combination of lightweight material, efficient processing and design freedom is favorable. To increase mechanical performance and reliability deep...

Short fiber reinforced plastics are important materials in many fields of lightweight construction, especially in transport application. Their advantage is that they can be processed in a rather economic manner by the standard methods for processing of polymeric materials. Therefore, they are suitable for all kinds of industrial scale production. Nevertheless, a major challenge is the lack of...

New challenges related to the development of sustainable transportation solutions demand innovative high performance lightweight materials, as composites. Due to its recyclability, thermoplastic matrices are preferred. In addition to the recyclability advantage, thermoplastics have higher impact strength and ductility than thermosets [1].
Polyamide 6 (PA6) produced from anionic ring opening...

Nowadays there is an increasing interest on the development of energy storage systems for electric mobility that could provide enough energy and reduce mass from vehicles. Structural supercapacitors based on composite materials are a potential alternative to satisfy both requirements. Transferring part of the energy storage responsibility towards structural elements will reduce weight from...

High production rates and short cycle times are essential for an efficient manufacturing of high-performance components made of carbon fiber reinforced polymer composites (CFRPC). Within the framework of the project AIRPOXY, a new epoxy based vitrimer resin was developed, that is targeting at reducing costs in production and maintenance, as well as repair and operations (MRO) costs of CFRPC...