nano2b at the SCHWEISSEN & SCHNEIDEN 2025 trade fair – Coated powders as the key to modern build-up welding and spray processes
SCHWEISSEN & SCHNEIDEN 2025 in Essen once again demonstrated how dynamically joining technology, surface engineering, and materials technologies are continuing to develop.
David Böhm was there as a visitor and made intensive use of the trade fair to exchange ideas with representatives from a wide range of industries—from plant engineering and the energy and steel industries to mobility and aviation.
The central theme of many discussions was how to make processes more robust, more efficient, and easier to control in terms of materials.
Intensive exchange with industry – materials become a success factor
Numerous discussions made it clear that the focus is increasingly on the powder itself. Whether in build-up welding or thermal spraying, the quality, composition, and functionality of the powder used are decisive factors in determining:
- Process stability
- Coating quality
- Adhesion strength
- Wear and corrosion resistance
This is precisely where nano2b GmbH opens up new possibilities with functionally coated powders.
Coated powders for build-up welding processes
In build-up welding—such as laser build-up welding or arc-based processes—powder flowability, energy absorption, and reaction behavior play a key role.
Our approach to surface functionalization enables us to achieve the following:
- More stable melting behavior
Tailored coatings can improve energy absorption, enabling a more uniform weld pool. - Reduced oxidation and controlled reactivity
Coated powders offer advantages in terms of process reliability and coating quality, especially for sensitive alloys or reactive materials. - Tailored functionalization of the build-up layer
Wear, corrosion, and temperature resistance can already be influenced at the powder level—a clear advantage for demanding applications.
Potential for spraying processes: cold gas spraying, HVOF, etc.
In the field of thermal and kinetic spraying processes—such as cold gas spraying, HVOF, or plasma spraying—traditional powders are increasingly reaching their limits.
Coated powders open up new degrees of freedom here:
- Optimized particle-particle and particle-substrate interactions
Coatings can specifically improve adhesion behavior—crucial for dense, durable layers. - Adaptation to process windows
Functional coatings allow powders to be better adapted to specific machine and process parameters. - New material combinations
Coated powders make it much easier to create multi-layer or functionally graded coatings.
Discussions at the trade fair confirmed that interest in customized powder solutions is growing across all industries.
Conclusion: Powder innovation as a driver for modern coating technologies
SCHWEISSEN & SCHNEIDEN 2025 was a valuable opportunity for nano2b to hear about industrial challenges firsthand and further sharpen our understanding of technology.
Discussions with users clearly show that future advances in build-up welding and spraying processes will be determined not only by equipment, but above all by intelligent materials.
Would you like to learn more about coated powders for your processes?
Whether you use build-up welding, cold gas spraying, or HVOF, we develop customized coatings for powders tailored to your application and process window.
➡️ Contact: office@nano2b.at
➡️ More information: www.nano2b.at