Hollow embossing (colloquially: embossing) opens up new possibilities for function-integrated components with minimal material input. In our test fields we develop robust forming processes for demanding geometries together with you. Ideal for industrial prototype production and the validation of new product designs.
The process is based on the interaction of punch and die. The foil-like semi-finished product is plastically deformed between the tool halves by combined tensile and bending stress. The punch enters the cavity of the die and draws the material in a defined way over the tool radii into the depth. The resulting depressions form the channels that guide the media in the bipolar plate.
Various hollow-embossing systems are available in the test fields at Fraunhofer IWU. Get in touch to have your prototypes tested with us.
Hydraulic fine-blanking press
Contact us for a no-obligation conversation about your development ideas. We help you develop the technologies and processes of the future. Together we will find the best solution for your challenges.
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Forming complex metal geometries with uniform wall-thickness distribution.
Highly scalable forming of bipolar plates via flexRoll & flexROLLmax.
Laser and electron-beam welding for precision and scale.
Automated assembly of PEM fuel-cell stacks.
Characterization and testing of electrolyzer and fuel-cell stacks, including inline inspection.
Reuse of materials and components.
