1. The Laser Zentrum Hannover e.V. (LZH) is researching a multi-laser beam welding process to ensure process safety in shipbuilding, especially for thick plates. 2. The process includes an integrated quality assurance system based on 'Digital Twin' technology to monitor and ensure consistent weld quality. 3. The new welding method aims to reduce overall error rates, necessary component inspections, and manufacturing costs while conserving resources.