Small, smaller, nano – how nanoparticles improve the performance of adhesives for wind turbine blades

The expansion of electricity generation using wind energy significantly contributes towards the climate-neutral energy supply in Germany. Due to the limited area available, future wind turbines will need to be more economical, with an improved degree of utilisation. The development of larger rotor blades is particularly important for this. However, established materials are nearing their…

High-precision CNC kinematics for reliable tool guidance

Additive functionalisation & local stiffening using fibre-reinforced 3D printing in the EmpowerAX demo part

Additive functionalisation is multifaceted and ranges from printing local stiffening ribs to integrating assembly and adhesive aids to introducing electrical conductors into the component. The basic structure of the component can be produced using an established process, such as tape laying for the production of large-area structures. Using fibre-reinforced 3D printing (short and continuous fibre-reinforced,…

High-precision CNC-kinematics for reliable tool guidance

High-precision CNC robots for additive manufacturing of fibre-composite structures

Increasing sustainability and productivity is one of the biggest challenges of our time. Therefore, in industry, there is a great need for high-precision and flexible systems for additive manufacturing. At our Institute, specially designed CNC robot kinematics with a high absolute positioning accuracy allow precisely controlled path movements in three-dimensional space. In combination with specifically…

A stronger root connection for wind turbine blades

Nowadays, more regenerative energy, especially more wind energy, is the order of the day. Above all else, this can be achieved with ever larger wind turbines. Such developments should lead to a decrease in the cost of energy as well as the space required for wind farms. However, wind turbines cannot simply keep growing without…

DLR EmpowerAX innovation lab – working together towards fibre-reinforced 3D printing

The implementation of new technologies presents a number of challenges for companies – from selecting a suitable technology to implementing it within their existing process set-up. As a result, companies look to find all the relevant information for technology implementation combined in one place. This is precisely what the DLR Empower Additive Extrusion Innovation Lab…

Non-cutting metal replacement – continuous fibre-reinforced 3D printing filaments

A newly developed impregnation technology enables cost-effective and flexible production of continuous fibre-reinforced thermoplastic 3D printing filaments. When combined with additive material extrusion processes, this makes it possible to implement lightweight yet highly resilient components made of thermoplastic fibre composites cost-effectively, even for new businesses and manufacturers of small production runs. Production of continuous fibre-reinforced…