Manufacture with laser welding jointing, and ultrasonic measurement, on hydrogen storage units (LUV) - step 2

Important results from the project

The project mainly achieved its objective regarding laser welding, but not regarding non-destructive ultrasonic testing of complex weld joints. Laser welding proved to be a well-functioning method for complex joints, both two-point laser welding and the laser scanner system were assessed to be effective solutions for industrial application. The project also generated new insights into melt flow dynamics and shielding gas, which resulted in the development of new methods for analyzing gas flows.

Expected long term effects

In the long term, the project is expected to strengthen the industrial application of laser welding for complex geometries and advanced materials, especially in hydrogen storage and lightweight structures. The developed knowledge on melt flow control, shielding gas effects and process stability will support more efficient and reliable manufacturing. New diagnostic methods, such as high-speed imaging and gas analysis, will contribute to better process monitoring and quality assurance.

Approach and implementation

The project followed the time plan, with some adjustments due to technical and personnel challenges. Laser welding provided relevant results, while ultrasonic testing did not meet expectations and requires further development. New insights into the impact of shielding gas emerged. With 30 project meetings, the collaboration between the partners was strong and contributed to the project being driven forward effectively, with knowledge sharing and problem solving despite the challenges occurred.