In the joint project funded by the Federal Ministry for Economic Affairs and Climate Protection (BMWi), 15 partners from business and research will work together on the production technology for energy technologies of the future.
The Saarland University with its Chair of Assembly Systems leads the consortium, while ZeMA, as an associated partner, promotes the transfer of results.
problem
Manual assembly processes for fuel cell stacks (BSZ) are often still carried out by specialists who are under considerable physical stress due to high product variances, high complexity and strict quality specifications. In order to reduce manufacturing costs, there is a need to use less highly qualified workers in the future, while continuously reducing the scrap rate.
Compared to other industries, quality assurance in the semi-automated assembly of the stacks also receives little attention, whereby non-destructive tests and continuous traceability are absolutely necessary for liability reasons. Quality assurance, the need-based increase in output and the physical relief of employees are only possible by scaling the manual assembly line into a semi-automated assembly line.
Automated assembly lines for fuel cell stacks are currently only isolated and prototypical in industrial use. Significant challenges must be solved in the future in feeding, transport, joining, testing and commissioning processes in order to achieve the industrial goals when stacking the components with frequencies > 1 Hz (1 part/s) for economical stack assembly.
objective
A partial goal of the research project is the development of a manual assembly system in which the employee is cognitively relieved by various systems and the use of less highly qualified employees in the varied assembly is made possible. This is particularly important due to the increasing shortage of skilled workers and the expected retraining of employees from the production of conventional powertrains.
A further sub-objective of the research project is based on the development of a semi-automated assembly line by integrating technologies for human-machine interaction for additional physical relief of employees and a system for proactive quality assurance in order to sustainably reduce the waste.
Another major sub-objective of the research project is to develop a high-stroke fully automated line for the assembly of the fuel cell stacks together with equipment suppliers, users and institutes and to operate it as a prototypical functional demonstrator.
approach
The project contains 5 work packages:
• Manual assembly: Conception and development of a scalable manual assembly line for fuel cell stacks with a focus on the cognitive relief of employees through assistance systems
• Partially automated assembly: Conception and development of a semi-automated assembly line for flexible capacity control using physical assistance
• Fully automated assembly: Development of the final fully automated line for the assembly of fuel cell stacks with a focus on speed-optimized mass production
• Digital twin and memory: Creation of the digital twin of product, process and resources for simultaneous quality and systems engineering
• Implementation and evaluation: Prototypical implementation and evaluation of the selected solution concept, e.g. by setting up a demonstrative, modular assembly line for fuel cell stacks at ZeMA and the testing processes at the Environmental Campus Birkenfeld
Results / Project status
Recovery concept
After the funding period, the demonstrators will be integrated into an Open Lab Factory, where the demonstrators will be available to equipment manufacturers, users and research institutes for test purposes and knowledge building. In the factory, the production systems of users can be used for the introduction of new fuel cell stacks for assembly planning and design, the integration of innovative technologies and the evaluation of assembly capability.
Duration: 01.12.2021 - 30.11.2024
Funded by:

